During the cell cycle the cell divides its nucleus and chromosomes during what
Answer:
Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by the division of the parent cell into two daughter cells. The word "mitosis" means "threads," and it refers to the threadlike appearance of chromosomes as the cell prepares to divide.
Which colour change is observed in the leaf?
Depending on the strength of the light hitting it and the amount of light reflecting from it, the leaf will assume the color that it cannot absorb, which could be red or blue.
The leaves quickly changed color from green to yellow within a few days, proving that even in the middle of summer, tree leaves may transform from summer to fall hue when exposed to insufficient sunshine. 10–20% is eliminated, and the remaining amounts are absorbed.
Chlorophyll decomposes, the green color vanishes, and the yellow to orange hues emerge, contributing to the fall brilliance of the leaves. Red anthocyanin pigments evolve as a result of other chemical changes that could take place at the same time.
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Correct Question:
What was the color change observed in areas of leaf that were not exposed to sunlight?
Who discovered DNA Rosalind?
Rosalind Franklin is best known for her pioneering work in the field of DNA research. She Franklin is credited with being the first to discover the structure of DNA.
Franklin was a British biophysicist who made major contributions to the understanding of the structure and function of DNA. She was born in 1920 and died in 1958 at the age of 37 from ovarian cancer. In 1952, she used X-ray diffraction to create a detailed image of the DNA molecule. This image, known as “Photo 51,” enabled James Watson and Francis Crick to use the data to construct their famous three-dimensional model of the double helix structure of DNA.
Franklin’s work was also instrumental in understanding the role of DNA in gene expression. She identified two forms of DNA, A and B, and postulated that genes were composed of DNA. This was a major breakthrough in understanding the role of DNA in the storage and transfer of genetic information.
Franklin’s research was groundbreaking and her contributions in the field of DNA research are still felt today. Her work helped to lay the foundation for the field of molecular genetics, and her legacy continues to live on in the world of science.
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What is the last phase of the Calvin cycle called?
The last phase of the Calvin cycle is called the "regeneration phase" or the "reductive phase."
The Calvin cycle, also known as the carbon fixation cycle or the dark reaction of photosynthesis, is the process by which plants use energy from sunlight to convert carbon dioxide (CO2) into glucose and other sugars. The cycle is named after Melvin Calvin, who was awarded the Nobel Prize in Chemistry in 1961 for his work on the cycle.
The last phase is called the "regeneration phase" or the "reductive phase" wherein the Calvin cycle regenerates the CO2 acceptor (RuBP) using the products of the previous stages, CO2 and NADPH, so that the cycle can continue. This phase is also when the CO2 is fixed and the cycle produces G3P, a 3-carbon molecule which can be used to make glucose or other sugars by plants.
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gene that is expressed only in the homozygous state
A gene that is expressed only in the homozygous state is known as recessive.
Alleles of a gene can be either dominant or recessive. Dominant alleles show their effect even when they are present in the heterozygous state. The recessive alleles only show effect when in homozygous state. Only the homozygous individuals, which are the ones having two copies, will experience the effects of recessive alleles.
For example, the allele for blue eyes is recessive and is represented by "b" and the allele for brown eyes is dominant and is represented by "B". If the genotype of the individual is BB or Bb, they will have brown eyes as they B is the dominant allele. If the genotype of the individual is bb, they'll have blue eyes as b is a recessive allele and will only show effect in homozygous condition.
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Which of the following forms of cellular transport is being illustrated below?
A.
pinocytosis
B.
endocytosis
C.
facilitated diffusion
D.
exocytosis
The form of cellular transport that is illustrated below in the given diagram is known as exocytosis.
What is Cellular transport?Cellular transport may be defined as the process of movement of substances across the cell membrane either into or out of the cell. Cell transport includes passive and active transport. Passive transport does not require energy whereas active transport requires energy to proceed.
Exocytosis is the process through which cells move materials from within the cell into the extracellular fluid. It significantly occurs when a vesicle fuses with the plasma membrane, allowing its contents to be released outside the cell.
Therefore, the form of cellular transport is being illustrated below in the given diagram is known as exocytosis.
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How does molecule marked A enter our body
Answer:
breathing. It contains oxygen and that is what we use to breath.
Explanation:
((SP/2 personal protective equipment ( PPE ))
ANSI-approved footwear has a protective toe and offers impact and compression protection.
A) True
B) False
True. ANSI-approved footwear provides a layer of protection against contact with heavy objects and other potentially hazardous materials.
What do you mean by hazardous?
Hazardous refers to something that is potentially dangerous or harmful. It usually refers to materials or substances that can cause harm or damage to humans, animals, property or the environment. Examples of hazardous materials include chemicals, asbestos, oil, and radioactive materials.
The protective toe helps to absorb and disperse the impact of any hard contact, while the compression protection helps to reduce the risk of injury to the foot, ankle, and lower leg in case of a heavy object falling onto the foot.
Hence, the statement is True.
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What are the three 3 chromosomal disorder?
The three most commonly seen chromosomal disorders are Down syndrome, Klinefelter syndrome, and Turner syndrome.
Down syndrome is a chromosomal disorder caused by an extra copy of chromosome 21. It is the most common chromosomal disorder, and is characterized by physical and intellectual disability. People with Down syndrome may have a variety of physical characteristics, such as a round face, an upward slant to the eyes, and a short neck. They may also experience learning difficulties, speech delays, and behavioral problems.
Klinefelter syndrome is a chromosomal disorder that is caused by an extra X chromosome. It occurs in males only, and is characterized by low testosterone, small testes, and infertility. People with Klinefelter syndrome may also have physical features such as a tall stature, long limbs, and gynecomastia (enlarged breasts). They may also experience learning difficulties, speech delays, and behavioral problems.
Turner syndrome is a chromosomal disorder caused by missing or incomplete X chromosome. It is the second most common chromosomal disorder, and is characterized by physical and intellectual disability. People with Turner syndrome may have a variety of physical characteristics, such as a short stature, webbed neck, and a broad chest. They may also experience learning difficulties, speech delays, and behavioral problems.
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What is the net charge of an ion that has 9 protons 11 neutrons and 11 electrons
2-
Explanation:Net charge describes the overall negative or positive charge of an atom or compound. Also, note that it is common in chemistry to write the sign of the charge after the number. Nevertheless, the charges +1 and 1+ are completely the same.
Calculating Charge
To find the charge of an atom you should look at the number of protons and electrons. Since neutrons have a neutral charge, aka no charge, they do not factor into net charge. On the other hand, protons have a positive charge and electrons have a negative charge. Each proton has a 1+ charge and each electron has a 1- charge.
To find the net charge find the total charge of the electrons and the total charge of protons, then add them together. Since there are 9 protons, the total proton charge is 9+. There are 11 electrons, so the total electron charge is 11-. For the purposes of doing the math, we can move the sign to the front.
(+9) + (-11) = -2Thus, the net charge is 2-.
Anions and Cations
To work with ions it is important to understand the vocabulary surrounding ions. Firstly, negative ions, like the one described in the question, are called anions. You can remember this as "A Negative ION". Also, positive ions, ions with positive net charges, are called cations. You can remember that the "t" looks like a plus sign.
Please help me with this im lost
DNA: TAC CTC CTT TGA ATT TAC CTT ACT CGT TGT ATT AAA TAT CAG CTC
mRNA: AUG GAG GAA ACU UAA AUG GAA UGA GCA ACA UAA UUU AUA GUC GAG
Amino Acids: MET GLU GLU THR STOP MET GLU STOP ARG THR STOP PHE ILE VAL GLU
What are transcription and translation?
Transcription is the process through which a segment of DNA is copied by the mRNA molecule to carry the necessary genetic information to the cytoplasm to grow a new molecule.
Translation is the other process that follows transcription. During translation, rRNA reads mRNA information, while tRNA identifies mRNA codons and adds the amino acids they code for to build the new protein.
The exposed example is incomplete. Since I could not find the complete question, I will fill in the boxes for mRNA and amino acids. You should complete the secret message using the whole data.
DNA: mRNA: Amino Acids:
TAC AUG MET
CTC GAG GLU
CTT GAA GLU
TGA ACU THR
ATT UAA STOP
TAC AUG MET
CTT GAA GLU
ACT UGA STOP
CGT GCA ARG
TGT ACA THR
ATT UAA STOP
AAA UUU PHE
TAT AUA ILE
CAG GUC VAL
CTC GAG GLU
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Scientists predict that climate change will cause more cases of extreme weather events in the future.
Which of the following extreme weather events do scientists have the strongest evidence for?
The U.S. economy's agriculture industry is significant. Each year, the United States economy receives more than $300 billion from the production of crops, cattle, and seafood.
What is Climate change?The agricultural and food sectors contribute more than $750 billion to the gross domestic product when food-service and other industries associated with agriculture are taken into account.
The climate has a significant influence on both agriculture and fishing. In some regions, rising temperatures and carbon dioxide (CO2) levels can improve crop yields.
Food safety may be at risk as a result of changes in the frequency and severity of floods and droughts, which could present difficulties for ranchers and farmers.
Therefore, The U.S. economy's agriculture industry is significant. Each year, the United States economy receives more than $300 billion from the production of crops, cattle, and seafood.
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Can somone please give me the answer to this?
control group: water
independant variable: number of days (time)
dependent variable: change in the appearance of green slime
Cellular respiration and photosynthesis are similar in that both produce.
A. oxygen molecules
B. carbon dioxide molecules
C. NADP molecules
D. ATP molecules
Cellular respiration and photosynthesis are similar in that both produce ATP molecules, which are the main energy source for cells.
What is Cellular respiration?Cellular respiration is the biochemical process of converting the chemical energy stored in food molecules into ATP molecules, which are the energy currency of cells. This process occurs in the mitochondria of cells and is a vital part of the energy cycle that maintains homeostasis and drives the metabolic activities of cells. During cellular respiration, oxygen is consumed and carbon dioxide is released as a by-product. The process involves the breakdown of food molecules, such as glucose, into smaller molecules, such as pyruvate, and the subsequent transfer of electrons from these molecules to electron acceptors, such as oxygen, to create ATP.
ATP stands for adenosine triphosphate, and it is a molecule that stores and transports energy within cells. Photosynthesis produces ATP by converting energy from light into a form of chemical energy, while cellular respiration produces ATP by breaking down glucose molecules.
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How many valence electrons are transferred from the nitrogen atom to potassium in potassium nitride.
In the formation of potassium nitride, zero valence electrons are transferred from nitrogen to potassium.
A valence electron is an electron in the outer shell of an atom that can participate in the formation of a chemical bond if the outer shell is not closed. A shared pair forms in a single covalent bond, with each atom contributing one valence electron.
From potassium to nitrogen, electrons are transferred.
The outermost cells contain valence electrons, which are capable of forming chemical bonds.
The formula is:
6K + N₂ ⇒ 2K₃N
K = K⁺ + e⁻
NO₃ + e⁻ = NO³⁻
Potassium transports electrons to nitrogen.
As a result, nitrogen transfers no electrons (zero) to potassium.
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What adaptations enable aquatic life to exist underground in an aquifer?
Sensory adaptations such as antennae, touch receptors and chemoreceptors, are usually highly developed in an underground dwelling species.
Adaptation is termed as any heritable trait which helps an organism, such as animal or plant, to survive and reproduce in its environment. It can be structural means physical part of the organism. Also it can be behavioral.
Sensory adaptations are those species which have very low metabolism and allowing them to live on a very little food. This adaptation having a constant temperatures of aquifer waters, that compared to the surface water temperatures which can vary quickly or widely. Groundwater species live in a very stable as well as predictable environment.
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Which of the following is NOT an example of environmental controls to reduce disease transmission in the surgical suite?
Treatment of the skin with an antiseptic or surgical scrub before donning sterile clothing.
What is in a surgical suite?A surgical suite is a collection of one or more surgical units and ancillary spaces including a scrub room, recovery room, and sterile storage area. However, foul-smelling garments, towels, bedsheets, handkerchiefs, and surgical bandages can also be found among fomites. SARS-CoV-2 was shown to survive on various surfaces for 4 to 72 hours in a lab environment.
What causes a fever, and how does it help the body fight infection?When the hypothalamus responds by raising body temperature over normal, a fever results. The above-normal temperatures are believed to support the body's defense against microbial invasion because they promote the movement, activity, and multiplication of white blood cells as well as the formation of antibodies.
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the complete question is-
Which of the following is NOT an example of environmental controls to reduce disease transmission in the surgical suite?
What have scientist learned from the human genome project
Answer:The HGP found that, in fact, humans have only about 20,000-25,000 genes (current estimates peg this to the lower end of that range). This number was quite a surprise to many scientists – many other organisms, such as rice and water fleas, actually have many more genes than we do!
Explanation:
What is the purpose of ground tissue?
A) To cover the plant and protect it from water loss and damage
B) To support the plant and make and store food
C) To transport water and nutrients throughout the plant
Ground tissue in stems provides support the plant and make and food. The correct option is B
What is ground tissue?Ground tissue is every one of the tissues aside from the vascular packs and the epidermis. They structure the inside of organs with the exemption being the vascular framework.
They include basic tissues for example such as
SclerenchymaCollenchymaParenchymaTherefore, ground tissue makes up much of the interior of a plant and carries out basic metabolic functions. Ground tissue in stems provides support and may store food or water. Ground tissues in roots may also store food.
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Indicate whether each function is performed by a plant's green
structures (G), its leaf openings (L), or its roots (R).
Plants use their green structures, leaf openings, and roots to perform a variety of functions.
The green structures Taking in water and nutrients from the soil: RMaking food using sunlight: GAbsorbing carbon dioxide from the air: GBalancing the plant on the ground: RAbsorbing nutrients from the soil: R
The roots of a plant are the main structures responsible for absorbing nutrients from the soil. Roots absorb water and essential minerals like nitrogen, phosphorus, and potassium which are necessary for the growth and development of a plant. They also help anchor the plant in the soil.Photosynthesis: G
Photosynthesis is a process in which green structures like leaves, stems, and chloroplasts absorb light energy and convert it into chemical energy. This energy is then stored in the form of carbohydrates like glucose which the plant uses for nutrition and growth.Ventilation: L
Leaf openings like stomata, lenticels, and hydathodes are responsible for the ventilation of a plant. They help to regulate the temperature of the plant and exchange gases like oxygen and carbon dioxide. This helps the plant to stay healthy and vigorous.Storage of food: G
The green structures of a plant are mainly responsible for the storage of food. They contain chloroplasts which are responsible for the conversion of light energy into chemical energy. This energy is then stored in the form of carbohydrates like glucose which the plant uses for nutrition and growth.To learn more about The green structures refer to:
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what forms across the center of a plant cell near the end of telophase?
Answer:
Cell plate
Explanation:
Producers are organisms that obtain their energy from sunlight. Consumers obtain their energy from eating food. This food may be producers, other consumers, or both. Decomposers obtain their energy from the breakdown of decaying matter. Students are asked to make a table classifying four organisms as producer, consumer, or decomposer. Which student filled out the table correctly?.
Organisms known as producers get their energy from sunshine. Food is how consumers get their energy. producers, consumers, or both, of this cuisine. Energy is produced by decomposers as a result of the breakdown of decaying matter.
How do producers use the energy that sunlight provides?How do producers manage to magically turn sunshine energy into molecules that other species can utilise? They achieve this feat by using a biological process known as photosynthesis. Sunlight energy is used in this process to break water molecules into hydrogen and oxygen.
How is the energy that sunshine gives for producers used?How do manufacturers suddenly transform solar energy into molecules that other organisms can use? They use the biological process of photosynthesis to accomplish this accomplishment. In this procedure, sunlight energy is used to split water molecules into hydrogen and oxygen.
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Which of the following neurons correspond to the gustatory-salivary reflex's afferent and efferent components, respectively
As stated in the preceding statement affarent, a sensory neuron Efferent pre-ganglionic neuron; neither is an interneuron.
How many years do neurons have?Adult neurons may last a lifetime and are still pliable after many years. Children are particularly good at picking up new languages because of this, according to W.A. Harris (left), who was joined by Joshua Sanes, head of the Harvard Center for Brain Science. 11 May 2022
What materials make up neurons?The three main parts of a neuron are dendrites, axons, as well as the cell body, or soma, which could be compared toward the branches, roots, as well as trunk of a tree (see illustration below). A neuron's dendrite, or "tree branch," receives information from nearby cells.
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Help please! which of the following describes the way in which a plant, such as an oak tree, obtains and uses energy?
A. It absorbs glucose sugar through the roots and breaks it down into atp during cellular respiration
B. it produces glucose sugar through cellular respiration and breaks it down through photosynthesis to produce atp
C. it produces glucose sugar through photosynthesis and breaks it down through cellular respiration to produce atp
D. it absorbs energy from sunlight and directly converts the energy into atp through photosynthesis
The answer is D
It takes the rays from the sunlight and turns them into ATP.
Answer:
The answer is D
It takes the rays from the sunlight and turns them into ATP.
How many minutes of vigorous intensity aerobic physical activity should adults get per week?
To obtain substantial health benefits, adults should do at least 75 minutes per week of vigorous-intensity aerobic physical activity.
Physical activity can be defined as any motor action which is carried out in the daily life of an individual which leads to caloric expenditure and includes the movements of all body parts.
A regular indulgence in a high intensity aerobic workout significantly reduces the risk of developing heart diseases, diabetes and keeps the body weight in check. For this, WHO has recommended that an adult should engage in at least 150 minutes every week of low or intermediate intensity physical activity or at least 75 minutes of vigorous-intense aerobic physical exercise.
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All of the following are primary functions of flowers except___
Photosynthesis is a primary function of leaves and is not a process which occurs in flowers.
Flowers are an important part of the plant which are involved in a number of different functions. Flowers can be either unisexual, that is, they contain either the male or female reproductive organs or they can be bisexual that is, they contain both the male and the female reproductive organs.
The functions of the flowers include production of the eggs, production of pollen grains, sexual reproduction etc. Photosynthesis is the process with the help of which a plant produces food. It occurs in the leaves of the plant and not the flowers.
--The given question is incomplete, the correct question is
"All of the following are primary functions of flowers except___ a. Sexual reproduction, b. Photosynthesis, c. Egg production, d. Pollen Production
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Type I and II species are commonly associated with K-selected species that can more easily survive natural disruptions.
Group of answer choices
False
True
Type I and II species are commonly associated with K-selected species that can more easily survive natural disruptions. False
What is K-selected species?K selected species are defined as those species that are present in stable and more predictable environments producing fewer offsprings having longer gestation periods and providing long term care after their birth.
Therefore K-selected species also called K-strategist species whose populations fluctuate at or near the carrying capacity (K) of the environment in which they reside. K-selection is more common in larger animals like whales or elephants with longer lifespans and overlapping generations.
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The blue color of the sky results from the scattering of sunlight by air molecules.
Answer:
Yes
Explanation:
Sunlight is scattered by tiny air molecules (known as Rayleigh scattering) increases as the wavelength of light decreases. Violet and blue light have the shortest wavelengths and red light has the longest. Therefore, blue light is scattered more than red light and the sky appears blue during the day.
The sky appears blue to the human eye as the short waves of blue light are scattered more than the other colours in the spectrum, making the blue light more visible.
What is a soil survey?
O It reveals the erosion of the soil to help determine best use.
O It reveals the water supply in the soil to help determine best use.
O. It reveals the characteristics of the soil to help determine best use.
O It reveals the ground cover of the soil to help determine best use.
Answer:
C. It reveals the characteristics of the soil to help determine best use.
Explanation:
Soil surveying information describes, defines, and classifies the soils and interprets them. It documents the kinds of soil and quality of the soils in the surveyed area. It contains soil information to determine which soil is needed for the intended uses wanted.
What are these chromosomes considered as heterozygous?
Heterozygous genotype is the one in which the individual has two different alleles.
Homozygous and heterozygous are the terminologies which are used to describe the allele pairs which are present in a particular organism. Organisms that happen to carry two identical alleles are known to have a homozygous genotype of that allele whereas those organisms which have different alleles are known as heterozygous.
For example, if the allele "W" codes for white fur in dogs and the allele "w" codes for brown fur in dog, then a heterozygous individual will have the genotype "Ww" and a homozygous individual will have the genotype "ww" or "WW".
-- The given question is incomplete, the complete question is
"What is heterozygous genotype?"--
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