During photosynthesis, the sunlight energy is converted into chemical energy in the form of glucose molecules through a series of complex biochemical reactions.
This process occurs in the chloroplasts of plant cells and involves two stages: light-dependent reactions and light-independent reactions.
In light-dependent reactions, light energy is absorbed by pigments such as chlorophyll, and this energy is used to create ATP, which is a molecule that stores energy. Additionally, water is split into oxygen and hydrogen ions, with the hydrogen ions being used to generate another energy-rich molecule called NADPH.
In the light-independent reactions, also known as the Calvin cycle, the ATP and NADPH produced in the light-dependent reactions are used to fix carbon dioxide into glucose. This process involves a series of enzyme-catalyzed reactions that ultimately produce glucose molecules. The glucose is then either used by the plant for energy or stored as starch for later use.
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What is animal phyla and symmetry ?
Animal phyla are the major groups of animals classified based on their shared characteristics, and symmetry is the way an animal's body is arranged. These are important concepts in the study of animal biology and help us understand the diversity and evolution of animal life.
Animal phyla are the major groups of animals that are classified based on their shared characteristics. There are over 30 recognized animal phyla, and each phylum includes a diverse group of organisms.
Some of the most common animal phyla include Chordata (vertebrates and their relatives), Arthropoda (insects, crustaceans, and arachnids), Mollusca (snails, clams, and squids), and Echinodermata (starfish, sea urchins, and sea cucumbers).
Symmetry, in the context of animal phyla, refers to the way an animal's body is arranged. There are three main types of symmetry found in animals: bilateral symmetry, radial symmetry, and asymmetry.
Bilateral symmetry is when an animal's body can be divided into two equal halves along a central axis, like in humans and most vertebrates. Radial symmetry is when an animal's body is arranged around a central point, like in starfish and jellyfish.
Asymmetry is when an animal's body cannot be divided into equal halves, like in sponges.
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The animal kingdom is incredibly diverse, with millions of species exhibiting various characteristics and traits. Animal phyla and symmetry are two concepts that help classify and describe animals based on their body structure and arrangement.
1. Animal Phyla: Animal phyla refer to the major groups or categories into which animals are classified based on their characteristics and evolutionary relationships. These phyla provide a framework for organizing and understanding the vast array of animal species. Examples of animal phyla include: - Chordata: This phylum includes animals with a notochord (a flexible rod-like structure), such as mammals, birds, reptiles, amphibians, and fish. - Arthropoda: This phylum includes animals with jointed legs and an exoskeleton, such as insects, spiders, crustaceans, and millipedes. - Mollusca: This phylum includes animals with a soft body, often protected by a hard shell, such as snails, clams, octopuses, and squids.Understanding animal phyla and symmetry helps scientists classify and categorize animals based on their evolutionary relationships and body structures. It also provides insights into their behavior, adaptations, and ecological roles within their environments.
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A typical resting heart rate for a normal individual is around...
Adults have a resting heart rate between 60 and 100 beats per minute. A typical resting heart rate, for instance, is closer to 40 beats per minute.
What does it mean to have a heart?The heart, a fist-sized organ, pumps blood throughout your body. It is the primary organ of your circulatory system. Each of your heart's four major chambers is powered by electrical impulses and made of muscle.
Where does heartache originate?Chest pain can occur anywhere along your body between your neck and upper abdomen, including there. Heart attack-like symptoms include pain in the chest that radiates to the shoulder and arm. Some people may not experience any chest pain at all.
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What is the purpose of the stigma?
The female part of the flower called the stigma is essential to attract pollen grains. It also provides a good environment essential for pollen grain.
The stigma is one of the female parts (gynoecium) of the flower. The female parts also contain an ovary and style. It is a sticky bulb-like structure found at the center of the flower. It's the part where the pollen grains land on it.
This structure carries the pollen grains before it travels toward the ovary to start the fertilization process. It is branched or elongated and feathery. This structure is compact and sticky enough to accommodate the pollen grains.
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Which of the following options is correct?
Cell adhesion in animals often occurs through the interactions of
a. cytoskeletons.
b. carbohydrates.
c. lipids.
d. receptors.
e. organelles.
The right response: D. receptor interactions frequently lead to cell adhesion in animals.In animals, cell adhesion occurs when certain receptors are present on the cell surface.
What are some examples of cell-cell adhesion?Cadherins (cadherin necessary to satisfy) & nectins are two well-known cell adhesion molecules which are involved in the control the cell adhesion (nectin cell adhesion).
What function do adhesion molecules provide in cell-cell communication?It is well established that adhesion molecules play a crucial role in an effective T-cell-mediated immunological response.Circulating T cells respond to signals produced at an inflammatory location by rolling, arresting, and then transmigrating through the endothelium. All of these responses are mediated via adhesion molecules.
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What is the anterior view of the skull?
The anterior view of the skull is the front view of the skull. It includes the forehead, eyes, nose, and mouth. The anterior view provides the most detail of the skull's structure, including the shape of the cranium, facial features, and the position of the jaw.
The anterior view of the skull is the front view of the skull. It is the view that shows the forehead, eyes, nose, and mouth. The anterior view of the skull is also known as the facial view.
This view is used to study the bones and features of the face, including the maxilla, mandible, nasal bone, zygomatic bone, and frontal bone. The anterior view of the skull is important for understanding the anatomy of the face and for identifying any abnormalities or injuries to the skull or facial bones.
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what is called the long, thin fiber that extends from the body of one neuron to another neuron, muscle, or gland
The long, thin fiber that extends from the body of one neuron to another neuron, muscle, or gland is called an "axon".
The axon is the primary structure of a neuron that carries nerve impulses away from the cell body to other cells. Axons can vary in length from a fraction of a millimeter to over a meter, depending on the type of neuron and the location of the target cells. Axons can also have many branches, which allow a single neuron to communicate with multiple target cells.
In addition to carrying nerve impulses away from the cell body to other cells, axons have several other important features and functions. The axon is a critically important structure for the proper functioning of the nervous system and allows for rapid, efficient communication between neurons and other cells in the body.
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Please can someone help me?
The set of chromosomes in the diagram below which depicts nondisjunction is 21 and is therefore denoted as option A.
What is Nondisjunction?
Nondisjunction is referred to as the failure of the chromosomes to separate, which produces daughter cells with abnormal numbers of chromosomes.
In the diagram given, set of chromosomes in the diagram below which depicts nondisjunction is 21 due to the abnormal length and properties observed when properly viewed thereby making it the correct choice.
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the bombardier beetle released a chemical from their abdomen in what kind of reaction?
The bombardier beetle releases a chemical from their abdomen in a rapid exothermic reaction.
The beetle mixes two chemicals, hydrogen peroxide, and hydroquinones, in specialized glands located in its abdomen. When threatened, the beetle aims the gland's nozzle at the attacker and rapidly releases the mixture, which instantly mixes and reacts, producing a hot and boiling spray.
The intense heat and pressure produced in the reaction effectively deter predators, while the chemicals themselves are also noxious and act as a chemical defense. The reaction is so rapid and efficient that it can reach temperatures of up to 100°C, providing the beetle with an impressive defense mechanism.
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Meiosis is responsible for which stage in the alternation of generations?
Meiosis is responsible for the production of haploid cells in the alternation of generations.
The alternation of generations is a reproductive cycle found in many organisms, including plants and algae, where there are two multicellular stages, a haploid gametophyte, and a diploid sporophyte.
During the haploid gametophyte stage, haploid cells called gametes are produced by mitosis. These gametes fuse during fertilization to form a diploid zygote, which grows into the diploid sporophyte stage. The sporophyte stage produces haploid spores by meiosis, which grow into the haploid gametophyte stage, thus completing the cycle.
Meiosis is a specialized cell division process that occurs during the sporophyte stage, and it produces haploid spores from diploid cells. The spores are genetically diverse due to the shuffling of genetic material during meiosis, which ensures genetic variation in the resulting haploid cells. This variation is important for the survival and adaptation of organisms in changing environments.
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what are the two primary organelles that work together to produce the necessary enzymes and proteins that all eukaryotic cells need to survive?
The nucleus and ribosomes are the two main organelles that collaborate to manufacture the essential proteins and enzymes which all eukaryotic cells require to survive.
What two organelles cooperate with one another?Through membrane contact sites, mitochondria or peroxisomes are closely related. In the past, scientists used a variety of experimental techniques to analyse the spatial structure of the two organelles in order to confirm the intimate association between them.
What two organelles are present in every cell?Four elements are present in all cells: the cytoplasm, a jelly-like area inside the cell where other biological components are present; the plasma membrane, an outer layer that divides the inside of the cell out of its surrounding environment; the DNA, the genetic material of a cell; and (4).
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In which type of classification system are names assigned only to groups that include a common ancestor and all of its descendants?
A. a system that groups organisms based solely on similar morphologies
B. a system that groups organisms based on similar roles in the environment
C. a system based entirely on evolutionary history
D. a system based solely on cellular structures
Phylogenetic classification is a type of classification system that assigns names only to groups that include a common ancestor and all of its descendants, based entirely on evolutionary history. Here option C is the correct answer.
The type of classification system that assigns names only to groups that include a common ancestor and all of its descendants is known as a phylogenetic classification system. Phylogenetic classification is based entirely on evolutionary history and the relatedness of organisms.
Phylogenetic classification systems use molecular data, morphology, and other characteristics to infer evolutionary relationships between organisms. The goal is to create a classification system that reflects the true evolutionary history of life on Earth. In a phylogenetic classification system, names are assigned only to groups that include a common ancestor and all of its descendants.
This is in contrast to other types of classification systems, such as those based solely on similar morphologies (A) or cellular structures (D), or those based on similar roles in the environment (B). While these other systems can be useful for some purposes, they do not necessarily reflect the true evolutionary history of the organisms being classified.
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what role does nondisjunction play in the formation of a fertile allopolyploid hybrid?a. It doubles the chromosome number in the hybrid.b. It allows gametes of the two parent species to combine.c. It causes the chromosomes to line up at the center of the cell during mitosis.d. It breaks down chromosomes that don't exist as homologous pairs.
Role nondisjunction plays in the formation of a fertile allopolyploid hybrid is:
It doubles the chromosome number in the hybrid.
Nondisjunction occurs when chromosomes fail to split correctly during cell division. Nondisjunction can result in the doubling of the chromosome number in the creation of a viable allopolyploid hybrid by allowing the hybrid to inherit a complete set of chromosomes from each parent rather than the predicted half set. This doubling of chromosomes is an important phase in the construction of allopolyploid hybrids because it results in the creation of a new species with a distinct set of genetic features. The hybrid's fertility is then determined by how successfully the doubled chromosomes couple up and segregate during meiosis, which may be regulated by a variety of variables including gene expression and epigenetic changes.
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Nodal cells in the SA initiate a heartbeat by spontaneously _____ to generate an action potential.
Nodal cells in the SA initiate a heartbeat by spontaneously depolarizing to generate an action potential.
What do you mean by nodal cells?
Nodal cells are specialized cells found in the heart, specifically at the sinoatrial (SA) node, the atrioventricular (AV) node, and the Bundle of His. These cells are responsible for generating electrical impulses that cause the heart muscle to contract and pump blood throughout the body. They are also known as pacemaker cells or pacemaker fibers.
Nodal cells in the SA, or sinoatrial node, are specialized cells located in the right atrium of the heart. These cells have an inherent pacemaker activity, meaning they can spontaneously depolarize, or generate an action potential, without any external stimulus. This action potential then spreads through the atria, causing them to contract. From there, it reaches the atrioventricular node, or AV node, which is responsible for transmitting the signal to the ventricles to cause them to contract as well. The action potential generated by the SA node sets off a chain reaction that leads to the heart beating in a regular rhythm.
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the zona pellucida is formed as the follicle becomes a secondary follicle.
The zona pellucida is shaped as the follicle turns into an optional follicle. The discharges of the bulbourethral organs kill hints of acidic pee in the urethra and act as an ointment during sex.
A scrotal muscle that agreements in light of cold ecological temperature are the cremaster.
The zona pellucida should be visible between the oocyte and the follicular cells. At long last, auxiliary (antral) follicles have an oocyte encircled by different layers of follicular (granulosa) cells in which an antrum should be visible.
The zona pellucida first shows up in unilaminar essential oocytes. It is discharged by both the oocyte and the ovarian follicles. The zona pellucida is encircled by the crown radiata.
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select all of the structures that you would expect to find in a prokaryotic cell.
Chromosome DNA is found in a nucleolus, ribosomes, cell membrane, and cell wall in all prokaryotes.
Describe a cell?The cellular membranes, the nuclei, and the cytoplasm are the three primary components of a cell. They give the body structure, ingest nutrients from meals, and turn those nutrients into energy.
A yeast is what?Through a process known as fermentation, yeasts are extremely effective at converting carbohydrates into carbon dioxide and alcohol. Because of this, they are very crucial for commerce and play a significant role in a variety of sectors, including the alcohol sector a mushroom or a cell,claims Laura Rusche.
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what is the name for a burst of activity on an eeg in the early stages of sleep?
The body starts a deep state of relaxation as we enter stage 2 sleep. Theta waves continue to control brain activity, although they are occasionally broken up by sleep spindles, which are short bursts of activity.
What EEG activity patterns are connected to sleep stage 2?Breathing, heart rate, muscular tone, & temperatures all settle down during Stage 2 Sleep. An EEG with varying frequency is overlay with brief bursts of increased brain wave activity. Sleep spindles are the term for these high-frequency activity spikes.
What EEG sleep stages are there?Rapid eye movements (REM) and non-rapid saw some (NREM) sleep are the two main stages of sleep that can be distinguished based on the macrostructure of sleep.
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What is the inferior structure of the skull?
the direction toward the shoulder is known as ________.
The vector that leads to the shoulder is referred to as proximal.
What exactly are proximal and distal?It describes the body portions is farthest from center in terms of medicine. Consider how far away from the shoulder the hand is. From the wrist, the thumb is distant. In contrast to proximal, distal is a term. As opposed to proximal, which denotes closeness, distal alludes to distance.
Shoulder is it distal or proximal?Nearer to the attachment or point of reference (ex: the shoulder is proximal to the elbow or the elbow is proximal to the wrist). Distal refers to a location that is further distant from a reference point or attachment, such as the wrist from the elbow or the shoulder from the elbow.
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Which is the correct order of the steps in a generalized signal transduction pathway? O Signal molecule enters nucleus, signal molecule binds to DNA, transcription of specific genes occurs O Signal molecule binds to extracellular region of receptor, signal molecule diffuses through cell membrane, signal is transduced to nucleus where specific genes are turned on or off O Signal molecule activates target cell, target cell binds to receptor, receptor is activated O Signal molecule binds to receptor, molecules within cell transduce signal, cell responds O Signal molecule is secreted by nearby cell, signal molecule enters cell, signal activates receptor
Signal molecule binds to receptor; molecules within the cell transduce the signal, cell responds
What is signal transduction pathway ?The process by which a cell responds to substances outside the cell by using signalling molecules that are present both inside and on the cell's surface.
Generalized and specialised transduction are the two types. Any part of the host's genome can be acquired by the bacteriophages through generalised transduction. Contrarily, with specialised transduction, bacteriophages only take up a limited range of the host's DNA.
Vision, touch, and hormones are some examples of signal transduction pathways.
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true or false.Water is the trigger for the embryo to begin the enzymatic breakdown of the starchy endosperm.
True: Water is the trigger for the embryo to begin the enzymatic breakdown of the starchy endosperm. The thick interior of a cotyledon known as the endosperm serves as the embryo's exclusive source of nutrition.
How do enzymes function?The vital function of enzymes is to reduce the activation energy of a reaction or the quantity of electricity necessary for the process to start. In order to facilitate the chemical bond-forming and bond-breaking processes, enzymes bind to reactant components and hold them in place.
What is the basic composition of enzymes?Proteins called enzymes are made up of amino acids connected by one or more protein molecules. The fundamental structure of a polypeptide chain refers to this arrangement of amino acids. This in turn dictates the geometry of the active site and the tri structure of the enzyme.
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Which statement does the author include to show there are concerns about how sports can negatively impact students?
A youngster who is pressured to perform and who feels a failure with every setback may experience an inappropriate degree of stress from sports. Sports may cause both parents and athletes to act in unreasonable or obnoxious ways. Many players who compete in sports might end up becoming bad role models.
Sports and mental health among students: what effects?Stress, anxiety, sadness, and thoughts are all correlated with decreased levels of participation in sports. misuse and other risky behaviours are less likely when they play team sports. The likelihood of getting wounded increases when there are many of players moving about the field or court. Instead of concentrating on team objectives, team members may become competitive to win individual accolades. Also, coaches are less able to concentrate on individual instruction.
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which shapes from the clade race would be considered autoapomorphic?
Option( i ,a,f, g )Hexagon ,Arrow ,Cross ,Star shapes from the Clade Race would be considered autoapomorphic
A clade is a collection of creatures that are monophyletic on a phylogenetic tree, meaning they share a common ancestor and all of their lineal descendants. It is also referred to as a monophyletic group or natural group. In taxonomical literature, the comparable Latin term cladus (plural cladi) occasionally substitutes for the English phrase.
The common ancestor could have been a person, a group of people, or a species (extinct or extant). Clades are layered one inside the other as each branch divides into more manageable branches. These divisions show how populations divided and evolved separately throughout evolutionary history. Monophyletic (Greek: "one clan") groups are known as clades.
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FUll Question: Which shapes from the Clade Race would be considered autoapomorphic?
a. Arrow
b. Circle
c. Moon
d. Triangle
e. Square
f. Cross
g. Star
h. Heat
i. Hexagon
Why would trees be j shaped?
If you've ever been hiking in the woods and come upon a clump of J-shaped trees, a landslide is likely.
Not that there is any sense of urgency. The reason a tree grows in a J-shape is because the earth beneath the roots moves extremely slowly. The Joshua trees. Joshua trees (Yucca brevifolia) are maybe the most well-known and iconic plant species in the Mojave Desert.
These plants are members of the agave family (Agavaceae) and are not trees, although growing up to 30 feet tall. J-shaped trees are nature's method of warning us about an approaching avalanche. If you're superstitious, you might see it that way.
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Which part of a nucleotide molecule encodes genetic information?
A. the base
B. hydrogen bonds
C. the sugar
D. the double helix
The base of a nucleotide molecule encodes genetic information, the correct option is A: the base.
The base is a nitrogenous molecule that is attached to the sugar component of a nucleotide. The four nitrogenous bases found in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G), and their sequence in a DNA molecule encodes genetic information. The sequence of bases determines the genetic code that is responsible for the expression of traits in living organisms. The sugar component of a nucleotide is either deoxyribose (in DNA) or ribose (in RNA) and forms the backbone of the nucleic acid. The double helix is the structure formed by two strands of nucleotides wound around each other, which is a result of the hydrogen bonds between the base pairs.
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Is there still a dodo bird alive?
During the sixteenth century, the bird has vanished. East of Madagascar in the Indian Ocean is the island of Mauritius, where the dodo (Raphus cucullatus) is endemic. The Rodrigues solitaire, which is also extinct, was the dodo's closest genetic relative.
The dodo bird lived on the island of Mauritius in the Indian Ocean for so long without being disturbed that it no longer required or had the capacity to fly. It inhabited the ground, built its nest there, and fed on fruits that had fallen from trees. There were no mammals on the island, but the deep trees were home to a wide variety of bird species.
The Portuguese arrived on Mauritius for the first time in 1505. Ships involved in the spice trade soon began to stop by the island. The dodo bird, which might weigh up to 50 pounds, provided the sailors with a welcome source of fresh meat. For food, a great deal of dodo birds were killed.
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Land plants life cycles feature alternation of generations. Which of the following statements about alternation of generations is false?A. The life cycle includes both a diploid and haploid multicellular statge.B. Gametes are not produced by mitosisC. Gametes fuse to form zygoteD. The life cycle includes A multicellular spore-producing generationE. Sporangia undergo meiosis to produce haploid unicellular spores
Land plants life cycles feature alternation of generations, the following statements about alternation of generations is false : B.)Gametes are not produced by mitosis.
What is meant by alternation of generations?Alternation of generations is predominant type of life cycle in plants and algae and it consists of multicellular haploid sexual phase, gametophyte, which has a single set of chromosomes alternating with multicellular diploid asexual phase, sporophyte which has two sets of chromosomes.
Alternation of generations is common in plants, algae, and fungi and this can be compared to the sexual reproduction in animals where both haploid and diploid cells are found in every generation. Plants alternate between diploid sporophyte and haploid gametophyte and also between asexual and sexual reproduction.
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A type of plowing known as _________________________ helps conserve soil by disturbing it as little as possible.
How does embyrological support that organisms have evolved over time or area related?
Answer:
Embryology is important to understanding a species' evolution, since some homologous structures can be seen only in embryo development. For example, all vertebrate embryos, from humans to chickens to fish, have a tail during early development, even if that tail does not appear in the fully developed organism.
Explanation:
Which of these carbohydrates may contain glucose as well as other monosaccharides? a. fiber b. amylopectin c. glycogen d. amylose.
It's possible that glucose and other monosaccharides are included in both amylose and glycogen.
What use does glycogen function?Glycogen is the name given toward this type of glucose that is stored and is composed of several bonded glucose molecules. Glycogen is metabolized to release sugar into the blood, which is then utilized as fuel again for cells, when the body craves a sudden energy surge or if the body isn't obtaining glucose from food.
How does too much glycogen act?Because more glycogen is retained in the liver rather than being liberated as sugar in the blood stream, a larger liver is associated with low blood sugar levels. Hypoglycemia, also known as low blood sugar, can produce sweating, trembling, tiredness, bewilderment, and occasionally seizure.
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What is the percentage of plasma in the total blood volume in human beings?
The percentage of plasma in the total blood volume in human beings = 60%.
Leukocytes, platelets, and erythrocytes make up around 40% of total blood volume, while plasma makes up about 60% of it. The volume of blood that circulates inside a person varies according to their size and weight, but an adult human has roughly 5 liters of blood in circulation on average.
Blood volume refers to the total volume of fluid circulating through the heart's arteries, capillaries, veins, and chambers. The elements that give blood volume are platelets, plasma, leukocytes, red blood cells (erythrocytes), and white blood cells (leukocytes).
compared to men, women often have less blood volume. but during pregnancy, a woman's blood volume rises by about 50%.
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