Answer: the percentage of total blood volume occupied by erythrocytes. In males =47% +/-5%; females = 42%, +/-5%. About 45% of total blood volume. cytoplasmic fragments of large cells called megakaryocytes.
Explanation:
The percentage of total blood volume occupied by erythrocytes is called the hematocrit
For women have a normal range of 40±5%.
What is blood?
Blood is circulated around the body through blood vessels called arteries and veins.males have about 5 to 5.5 liters of blood.females have about 4 to 4.5 liter of blood.About 55% of blood is blood plasma.erythrocytes are about 4.7 to 6.1 million (male), and 4.2 to 5.4 million (female) blood supplies oxygen to the entire body.Plasma without clotting factor is called serum.The solid part of our blood contains red blood cells (RBC), white blood cells (WBC), and platelets.
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How does the Amazon rainforest contribute to the health of the planet?
-It filters the circulating air of the planet.
-It protects twenty-five percent of the world’s plant species.
-It stores 100 billion metric tons of carbon.
-It produces fifty percent of the world’s oxygen.
Answer:
It protects twenty-five percent of the world’s plant species.
Explanation:
Answer:
It stores 100 billion metric tons of carbon.
Explanation:
.
Imagine you are a paleontologist trying to find the "missing link" between different species. In three to five sentences, create a fictional narrative about your discoveries, describing: 1) what two species, mythical or real, you are studying, 2) what evidence you have linking these species, and 3) what evidence you have to define different correlations and causations that support your hypothesis
The "missing link" between different species. man and chimpanzee,
the evidence linking these species are their similar body structures, behavior and intellect.
Missing linkThe two species studied are men and chimpanzee, the evidence linking these species are their similar body structures, behavior and intellect.
The evidence for this discovery is that in Ethiopia in 1974 it was named Lucy (in honor of the Beatles "Lucy in the Sky with Diamonds"). Its bones date back to 3.2 million years ago. The brain was small and its height was no more than one meter.
It was classified among the Australopithecus afarensis and for a long time held the post of the grandmother of humanity.
In this question, We imagine that we are paleontologists trying to find the "missing link" between different species. man and chimpanzee, we created a fictional narrative about this discovery.
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How do species become different?
Answer:
Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.
Explanation:
NEED HELP!!!
A. What are the options for surviving a very cold winter?
B. What protective measures might be required to keep cells alive during periods of torpor?
What do each of the leaves of a four leaf clover stand for.
Answer:
The first leaf represents hope, the second stands for faith, the third is for love and the fourth leaf brings luck to the finder.
Explanation:
Why are there so few third-level consumers and how does this fit with the energy pyramid? Group of answer choices because there is less energy available at the bottom of the pyramid because of the energy and heat loss at each level of the pyramid because they use the most energy competing for food in the pyramid because they have the fewest sources of food for energy in the pyramid
Answer:
because of the energy and heat loss at each level of the pyramid
Explanation:
Producers (photosynthetic beings) are the ones who are at the base of the food pyramid, and for this reason, they are the ones with the most energy availability. ,
When a primary consumer feeds on producers, the energy stored in organic compounds is transferred to him. Consumers then use ingested organic matter to produce energy, which, in turn, is used to carry out some processes for their survival. Another part of the substances ingested is lost in feces and urine.
When serving as food for another organism, primary consumers transfer their energy to that secondary consumer, and so on. Therefore, at each level of the pyramid, less energy is passed, and then less energy is available, the more difficult and competitive it becomes for subsequent consumers.
How do veins
return blood to the
heart?
A. using simple and
facilitated diffusion
B. using osmosis and
simple diffusion
C. using capillaries and
arteries
D. using valves and muscle
contractions
Answer:
using capillaries and
arteries
Explanation:
Two unique reproductive adaptations of angiosperms are.
Answer:
Angiosperms exhibit a vast array of reproducive strategies.
The evolution of several physical and genetic barriers to self-fertilization or fertilization among closely related individuals is thus widespread in angiosperms. A major genetic barrier to self-fertilization is self-incompatibility (SI), which allows female reprductive cells to discriminate between "self" and "non-self" pollen, and specifically reject self pollen.
Explanation:
Two unique reproductive adaptations of angiosperms (flowering plants) are flowers and fruits.
Angiosperms have evolved specialized reproductive structures called flowers. Flowers are composed of several parts, including the male reproductive organs (stamens) and the female reproductive organs (carpels).
They produce fruits, which are structures that develop from the ovary after fertilization. Fruits serve as protective coverings for seeds and aid in their dispersal. They can take various forms, including fleshy fruits like apples and berries, as well as dry fruits like nuts and capsules.
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What causes smog in L.A. and in Mexico City? Describe at least factors.
Describe one change to factories and power plants intended to reduce air pollution.
Describe one change to automobiles and buses intended to reduce air pollution.
Describe one way that commuters can now reduce air pollution.
What is still a major challenge to reducing air pollution in Mexico City?
What causes smog in L.A. and in Mexico City? Describe at least factors.
The smog is trapped in the valley and cannot be carried away by wind.
Describe one change to factories and power plants intended to reduce air pollution.
Reducing toxic emissions from industrial sources, reducing emissions from vehicles and engines through new stringent emission standards and cleaner burning gasoline; and addressing indoor air pollution though voluntary programs.
Describe one change to automobiles and buses intended to reduce air pollution.
Using fuel efficient vehicles, or electric vehicles.
Describe one way that commuters can now reduce air pollution.
Choose a cleaner commute, share a ride to work or use public transportation. Combine errands and reduce trips. Walk to errands when possible. Avoid excessive idling of your automobile.
What unique features do you notice about the shape of these cells? How might this improve their ability to absorb materials?
RESPOND ASAP
Certain cells need to absorb a lot of materials, such as the cell of the small intestine that reabsorbs the digested foods into the blood. These cells have external growth that facilitates the reabsorption by increasing the surface area.
What is the intestine?The intestine is divided into two parts, such as the small intestine and the large intestine, The small intestine is responsible for digestion, while the large intestine is responsible for fecal excretion. The enzymes are secreted, complete digestion happens in the small intestine, the digested food is reabsorbed into the blood, and the cells that carry out the reabsorption have external grooves called villi. These villi increase the surface area of the small intestine so that more absorption can occur and cells get enough nutrition for cellular metabolism.
Hence, Certain cells need to absorb a lot of materials, such as the cell of the small intestine that reabsorbs the digested foods, which has villi as a special feature of the cell.
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WILL MARK BRAINLIST IF CORRECT PLEASE ANSWER FAST!!!!! _______________ has lots of nutrients but does NOT allow water or air to pass through
Answer:
the skin on your body
Explanation:
because it is a tough cover it protects the body in many ways,thus it's water proof.
1.
Which weather pattern can drop torrential amounts of rain, create storm surges, and destroy structures with high winds?
drought
tornado
hurricane
thunderstorm
2.
What is the main energy source for a hurricane?
winds blowing from high pressure to low pressure
warm air masses
cool ocean water
warm ocean water
3.
What makes the weather inside the eye of the storm calm and clear?
high pressure air
low pressure air
clockwise rotation
counterclockwise rotation
I will mark brainliest for correct answers!
#1
HurricaneRest can destroy with winds but hurricane can bring rain .
#2
winds blowing from high pressure to low .When ocean becomes hot low air pressure is created.
#3
Clock wise rotation .The hurricane rotates around the eye
1.
Which weather pattern can drop torrential amounts of rain, create storm surges, and destroy structures with high winds?
drought
tornado
hurricane ✓
thunderstorm
A hurricane can cause destruction at a high scale2.
What is the main energy source for a hurricane?
winds blowing from high pressure to low pressure ✓
warm air masses
cool ocean water
warm ocean water
when the clouds take up the hot vapours , making the atmosphere warm ,the pressure increases resulting in formation of wind and when these winds wind up to make a huge pattern which we call hurricane3.
What makes the weather inside the eye of the storm calm and clear?
high pressure air
low pressure air
clockwise rotation ✓
counterclockwise rotation
The clockwise rotation moving a same direction helps to make the eye visible to usIn a Punnett square for a two-factor cross, is it possible for all of the offspring to be identical?
Explain why or why not.
In a Punnett square for a two-factor cross, it is not possible for all of the offspring to be identical.
The Punnet square simply refers to a square diagram that's used for the prediction of the genotypes of a breed. The diagram is usually used by biologists in order to determine the probability of the genotype of an offspring.
For example, if there's a dominant and recessive genes represented as B and b. When they're crossed, the offsprings that are gotten will be BB, Bb, Bb, bb.
From the above, it shows that in a Punnett square for a two-factor cross, it is not possible for all of the offspring to be identical.
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How do dna polymerase i and dna polymerase iii differ?.
Explanation:
DNA Polymerase III synthesizes the majority of the DNA, while DNA Polymerase I synthesizes DNA in the regions where the RNA primers were laid down on the lagging strand.
Why do cells have a maximum diameter of slightly over 100 micrometer
Cells have a maximum diameter of slightly over 100 micrometer due to chemicals or mutation.
Why cells have a maximum diameter of slightly over 100 micrometer?Prokaryotic cells diameter ranges from 0.1 to 5.0 micrometers (μm) which are smaller than eukaryotic cells, which have diameters ranging from 10 to 100 μm.
Some cells have attain the diameter of over 100 micrometer which may be due to mutation or exposure to chemicals so we can conclude that Cells have a maximum diameter of slightly over 100 micrometer due to chemicals or mutation.
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i need help, i dont know how to do this so yea
Answer:
A= CHON or Carbon, Hydrogen, Oxygen, and Nitrogen
Explanation:
My biology teacher.
The anesthesia has blocked
from carrying signals to the
.
Answer:
The
Explanationbrain:
If the Anastasia is given to prevent pain so it is put just before the brain so that the pain could not be received.
Which of these statements is true about autotrophs, but not heterotrophs?
Answer:
they both have some thing true about them in there definition
Explanation:
You forgot to include the answers but I'll just list out some things.
Autotrophs: An organism that produce their own energy from the sun and other natural components.
EX: Algae, phytoplankton, grass, seaweed, etc.
Heterotrophs: An organism that cannot produce it's own food and uses off other animals' energy.
EX: Dogs, fish, birds, antelopes, etc.
*Hopefully this helps you figure the answers. Since you didn't give is the solutions, we can't give you the "correct" answer. Like I said before, I'll give you some explanations.*
Which of the following is NOT a structural adaptation?
camouflage
mimicry
spikes on a hedgehog
a squirrel climbing up a tree
Answer:
Camoflauge.
Explaination:
Camouflage is when a species changes to resemble its surroundings to protect itself.
Structural adaptations are physical features of an organism such as spikes on a hedgehog.
Since camoflauge is not a physical feature, it is therefore not a structural adaptation.
Hope this helps!
Location plays a role in wetland type, but is not the sole determining factor. Please select the best answer from the choices provided T F.
The statement location plays a role in wetland type but is not the sole determining factor is true.
What do you mean by Wetland?Wetlands are areas where water covers the soil or is present either at or near the surface of the soil all year or for varying periods of time during the year, including during the growing season.
The characteristics of the fate line depend on the location primarily on its latitude and longitude. The direction and movement of the sun also affect the wetland types.
Therefore, The statement location plays a role in wetland type but is not the sole determining factor is true.
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Answer:
True!
Explanation:
Unattached earlobes are a dominant trait in humans. Which phenotype does an individual with the genotype EE show
Answer:
Unattached earlobes
Explanation:
E is dominant, so in the genotype EE, the dominant trait will be expressed which is unattached earlobes
The overall purpose why plants perform photosynthesis is to
Answer:
To make food for the plant.
Explanation:
Answer:
create glucose/ food. or o2
what would happen if sister chromatids were not pulled apart at anaphase 2
Answer and Explanation: Nondisjunction occurs when sister chromatids are not pulled apart at anaphase II. This will cause both sister chromatids/ homologous chromosomes to be pulled to just one pole of the cell.
Since the anaphase I stage in Meiosis I occurred without errors, this would result in four haploid gametes being produced.
However, two of these gametes will be normal, will have the normal number of chromosomes. The other two gametes would have an abnormal number of chromosomes and be aneuploid. One would have n+1 number of chromosomes, and the other would be n-1.
plz help me I just want to be sure my answer is right
Answer:
<----------------------<';'ERROR';>------------------<';ERROR';>-------------------<';ERROT';>------------>
Explanation:
Hope this helps!!!
Why is it important to understand human sexuality?
A. We have similar sexuality issues.
B. Eventually, we will all become mature adults.
C. There is a specific age for developing one's sexuality.
D. It will help us build a better relationship with ourselves and others.
Describe the levels of organization in the body.
Cells are the smallest living part of organisms. When groups of similar cells come together, they form tissues. Groups of tissues that work together to perform a function are called an organ. Groups of organs that work together to perform a job are called an organ system. The body is made up of multiple organ systems.
List the four stages of coal formation.
Answer:
eat, lignite, bituminous, and anthracite.
Explanation:
The stage depends upon the conditions to which the plant remains are subjected after they were buried: the greater the pressure and heat, the higher the rank of coal.
Answer:
There are four stages in coal formation: peat, lignite, bituminous, and anthracite.
Explanation:
Stage one: Peat is the first stage in the formation of coal. Normally, vegetable matter is oxidized to water and carbon dioxide. However, if plant material accumulates underwater, oxygen is not present and so only partial decomposition occurs. This incomplete destruction leads to the accumulation of an organic substance called peat. Peat is a fibrous, soft, spongy substance in which plant remains are easily recognizable. It contains a large amount of water and must be dried before use. Therefore, it is seldom used as a source of heat. Peat burns with a long flame and considerable smoke.
Stage two: Lignite, the second stage, is formed when peat is subjected to increased vertical pressure from accumulating sediments. Lignite is dark brown in colour and, like peat, contains traces of plants. It is found in many places but is used only when more efficient fuel is not available. It crumbles easily and should not be shipped or handled before use.
Stage three: Bituminous Coal is the third stage. Added pressure has made it compact and virtually all traces of plant life have disappeared. Also known as “soft coal”, bituminous coal is the type found in Cape Breton and is our most abundant fuel. It is greatly used in industry as a source of heat energy.
Stage four: Anthracite, the fourth stage in coal formation, is also known as “hard coal” because it is hard and has a high lustre. It appears to have been formed as a result of combined pressure and high temperature. Anthracite burns with a short flame and little smoke.
Which of the following does NOT belong as a characteristic of Eukaryotic cells?
Nucleus is present
Bacteria is an example
Includes membrane bound organelles
Cell membrane present and contains genetic material
Answer:
yes
you are right
Explanation:
membrane present and contains genetic
Although the cause of Parkinson's disease is unknown,research indicates that it may be due to defective nuclei in the cells of those affected.Which of these could be studied as a direct result of having defective nuclei and may shed light on the cause of Parkinson
Answer:
Nervous System could be studied as a direct result of having defective nuclei and may shed light on the cause of Parkinson .
Explanation:
PASRKINSON DISEASE -: Parkinson's disease is a progressive nervous system condition. Several regions of the brain are affected by the condition, especially an area called substantia nigra that regulates balance and movement.
A trembling or shaking (tremor) of the limb is often the first sign of Parkinson's disease, particularly when the body is at rest. Typically, on one side of the body, the tremor starts, usually in one hand. The head, legs , feet, and face can also be affected by tremors. Other hallmark symptoms of Parkinson's disease are rigidity or rigidity of the limbs and body, slow movement (bradykinesia) or inability to move (akinesia), and impaired balance and coordination (postural instability).
Emotions and thinking ability (cognition) can also affect Parkinson's disease. Psychiatric disorders such as depression and visual hallucinations are created by some affected persons. There is also an increased risk of developing dementia in people with Parkinson's disease, which is a loss in intellectual functions, including judgment and memory.
Hence , the answer is the nervous system and other regions of brain where the disease has a direct result of having a defective nuclei and may shed light on the cause of Parkinson .
3. Describe the variation between individuals of giant tortoises found on the
Galapagos Island, and explain why.