If a scientist is monitoring cytokinesis in a cell, then the scientist must be witnessing
A) Anaphase
B) Interphase
C) Prophase
D) Metaphase
Answer:
A
Explanation:
anaphase
If a scientist is monitoring cytokinesis in a cell, then the scientist must be witnessing A. Anaphase.
Cytokinesis refers to the physical process of cell division that's vital for the division of the cytoplasm into two daughter cells.
Cytokinesis begins with the anaphase and then continues through to the telophase. The anaphase is the stage of mitosis where replicated chromosomes are divided into daughter cells.
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Cytochrome C is a protein that functions in cellular respiration as part of the electron transport chain. It is frequently used to determine evolutionary relationships between different organisms because it is highly conserved (only differs slightly) between different organisms. A student researching evolutionary relationships between different organisms performed an ELISA test to analyze differences between cytochrome C proteins in different organisms. What is the independent variable in this experiment?a) the organismb) the darkness of color resulting from the ELISA testc) the antibody used in the ELISA testd) the protein being compared (cytochrome C)
Answer:
A) the organism
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in the experiment in order to bring about a measurable response.
In this question involving the a student researching evolutionary relationships between different organisms who performed an ELISA test to analyze differences between cytochrome C proteins in different organisms. The DIFFERENT ORGANISMS used by the student is the independent variable because it is what the student changes in order to check out the difference in their cytochrome C proteins
Though resembling filamentous green algae, the _______ of mosses contains filaments that either are photosynthetic or can act to anchor the moss to a substrate. The latter are called _______
Answer:protonema
Explanation:
Mosses have protonema that develops from germinating spores,which is a multicellular filament. This filament has high chlorophyll content and hence can photosynthesis generating food for its growth.
A protonema may produce leafy shoot and this is done under a favourable condition, this shoot later develop into bud.
Chickpeas are the third largest legume crop in the world and one of the eight founder crops of agriculture. Chickpea flower color is a useful morphological marker of different strains of chickpea. Of the world collections of chickpeas, 80% produce pink flowers, 19% produce white flowers and 1% produce blue flowers. Two pure-breeding strains of chickpea, Strain A (white flowers) and Strain B (blue flowers) were crossed and the F1 were all pink. The F2 generation (from an F1 X F1) produced: 141 Pink flowers plants 40 Blue flower plants 66 White flower plants A. Explain these results if a single gene is responsible for determining flower color in chickpeas. Give your answer by assigning genotypes, phenotypes and ratios. B. Explain these results if two genes are responsible for determining flower color in chickpeas. Give your answer by assigning genotypes, phenotypes and ratios. C. How would you test which hypothesis (one gene or two genes) is the most likely hypothesis
Answer and Explanation:
a. The enes are responsible for expressing the characteristics of an individual. However, genes responsible for the same trait have different alleles, which make these traits different from each other, as is the case with chickpea flowers. Alleles can be h0m0zygous dominant (AA), recessive h0m0zygous (aa) or heterozygous (Aa), in short, dominant alleles are expressed in capital letters and are always expressed by the organism, so the alleles with greater proportions within an intersection, since they can be expressed in h0m0zygous and heterozygosis. Recessive alleles, however, can only be expressed in h0m0zygous and therefore have a smaller proportion.
B. Chickpeas have a type of dominance called incomplete dominance. This type of dominance occurs when the dominant alleles (AA) do not suppress the expression of the recessive genotype (aa), but joins the one showing an intermediate phenotype to the phenotype of the two alleles. This recessive phenotype can be seen in the heterozygous allele (Aa). Thus, we can see that the dominant flowers have AA alleles and have a white phenotype, while recessive flowers have aa alleles and have a blue phenotype, as explained in the question above. The crossing between these two plants generates an offspring where all the flowers present the pink phenotype, which is the intermediate phenotype between blue and white, in addition, this crossing generated an offspring that presents the Aa phenotype. You can also see this variety of colors at the crossing of the F2 generation, where most plants have the intermediate phenotype (Aa), followed by the dominant phenotype (AA) and followed by the recessive phenotype (aa). All crossings can be seen in attachments.
c. To test the hypothesis of one or more genes responsible for these characteristics, we would have to do biochemical and molecular tests. For that, it would be necessary to make a DNA extraction from the plant, PCR reactions and the isolation of one or more genes related to the color of the flowers.
Answer:
cool d*ck
Explanation:
The four fundamental types of organic molecules are proteins, carbohydrates, lipids, and ______.
A. Salts
B.phosphates
C.sulfates
D.nucleic acids
Nucleic acids is the answer
AP biology questions are very hard. What book should my student be using as a reference?
Answer:
honestly, it is all up to your preference if you are the tutor or the teacher. It depends on if the student wants to go really in-depth with their work and memorize all the small details, or to know the basics
Explanation:
how do glass frog adapt to the climate
Answer:
The glass frogs adaptations help them survive. One detail is that it can camouflage. Its like glass you can see through and it can blend in with the leaves. They lay eggs in the leaves to survive.
Answer:
The glass frogs adaptations help them survive. One detail is that it can camouflage. Its like glass you can see through and it can blend in with the leaves.
what describes the relationship between the scientific method and the scientific process?
Answer:
You could say, when conducting research scientists use the scientific method to collect measurable empirical evidence in an experiment related to a hypothesis often in the form of an if/then statement the results aiming to support or contradict a theory.
This is a type of mushroom called a cremini. Which is a physical characteristic of this mushroom?
A.It is needs moisture to grow.
B.It is can be used for cooking.
C.It is a living organism.
D.It is a light brown color
Answer:
im pretty sure is D
Explanation:
What carbon dioxide can be Direct effect on kelp?
Ecological function they play in preserving the stability and health of the nearshore marine ecosystem, sea otters are regarded as a keystone species.
What is keystone species?Sea urchins and other herbivorous invertebrates are allowed to graze through vast expanses of huge kelp forests unchecked in the absence of sea otters, leaving behind them desolate coastal habitat that once functioned as nurseries for fish, seals, and swarms of other sea life.
A recent study that was just released in the journal Frontiers in Ecology and the Environment shows that otters have an impact on our atmosphere's carbon levels in addition to the habitat that kelp forests provide.
Kelps are very young plants, but they extract enormous amounts of carbon from the atmosphere, a process known as "primary productivity."
Therefore, Ecological function they play in preserving the stability and health of the nearshore marine ecosystem, sea otters are regarded as a keystone species.
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A scientific theory is NOT an educated guess.
True
False
Answer:
False
Explanation:
Scientific theories are given on the basis of lots of studies.Even the hypothesis are proposed only after the observation of specific materials.
Which of the following characteristics are displayed by primates? (Choose all that apply)
A. porous bones
B. binocular vision
C. vertical posture
D. variety of teeth
Answer:
options B...C...D hope this helps
Explanation:
The following characteristics are displyed by primates:
B. binocular vision
C. vertical posture
D. variety of teeth
What are primates?Primates are a group of mammals that includes lemurs, lorises, bushbabies, tarsiers, monkeys, and apes (including humans). Primates are characterized by several physical and behavioral traits, including:
Binocular vision: Primates have forward-facing eyes that allow them to see in three dimensions, which is useful for navigating through their environment and locating food.
Vertical posture: Most primates are able to stand and walk upright on two legs, which is known as a vertical posture. This trait is especially well-developed in humans, but is also present in other primates such as apes and some monkey species.
Variety of teeth: Primates have a diverse range of teeth that are adapted for different types of food, such as fruits, leaves, insects, and nuts.
Opposable thumbs: Most primates have opposable thumbs, which are thumbs that can touch the tips of the other fingers. This allows them to grasp objects and manipulate them with greater precision.
Social behavior: Many primates are social animals that live in large groups, and they often have complex communication and social systems.
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The pointy, inferior part of the heart is the ____ while the _____ is much broader with multiple blood vessels entering and exiting from the region.
A. Base; apex.
B. Apex; base
C. Auricle; septum
D. Septum; auricle
The pointy, inferior part of the heart is the _apex___ while the __base___ is much broader with multiple blood vessels entering and exiting from the region.
Which structure is found only in plant cells and functions in the process of photosynthesis?
W
x
Υ
Z
Answer:
Chloroplasts are specialized organelles found only in plants and some types of algae. These organelles carry out the process of photosynthesis, which turns water, carbon dioxide, and light energy into nutrients from which the plant can obtain energy. There can be over one hundred chloroplasts in certain plant cells.
Answer:
I say the answer is X because if you haven't notice that you can only find that in a plant cell if you look at a human or a animal cell you wouldn't find that
sorry i'm so late on this question.
What are the two major threats to African elephant populations?
Answer:
Elephants are sometimes killed in retaliation. With human populations continuing to grow across their range, habitat loss and degradation - and conflict with communities - will remain major threats to elephants' survival.
Colonial leaders justified their plan to become independent from England by arguing that
colonists should have the same freedom of speech as Parliament.
the judicial branch of government, not the king, should interpret laws.
King William should have ended the Dominion of New England.
the king had violated their rights and had lost the right to rule them.
Answer:
The answer is D.
Explanation:
Colonial leaders justified their plans for independence from England by arguing that the king had violated their rights and had lost the right to rule them. So, the correct option is (D).
What are Colonialism?Colonialism is described as the control by one power over a dependent territory or people, which occurs when one nation subjugates another, conquers and exploits its population, often to its own advantage. By imposing language and cultural values on their people.
It is defined as the practice or policy of control by a person or other people or territories, often by colonization and usually for the purpose of economic dominance. In the process of colonization, colonizers may impose their religion, language, economics, and other cultural practices.
Thus, Colonial leaders justified their plans for independence from England by arguing that the king had violated their rights and had lost the right to rule them. So, the correct option is (D).
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Blood cells have a rigid cell wall?
Answer:
No the cell wall is only found in plants
Explanation:
What must you do FIRST, when using an electronic balance (after turning it on)?
Answer:
wait for the balance to show zeroes on the digital screen then Use tongs or gloves to place the empty container you will use for the substance to be measured on the balance platform. Fingerprints and other greases from your hands add mass and must be avoided for accurate measurements.
Explanation:
what is the name of the waxy coating that keeps plants from drying out?
A.chloroplast
B.cuticle
C.pholem
D.xylem
I NEED THIS ASAP
Answer:
the answer is b, cuticle. hope this helps!
Answer:
The answer is Cuticle.
Explanation:
The waxy covering on plant leaves, young stems, and fruit is called the "cuticle". It is composed of cutin, a wax-like material produced by the plant that is chemically a hydroxy fatty acid. The purpose of this covering is to help the plant retain water. Hope this helps!
Which is true of the low-tide zone?
It hosts very few kinds of life.
It is almost always underwater.
Its ecosystem never includes species that live on land.
Creatures there can spend a lot of time exposed to the air.
Answer:
b
Explanation:
i think
I need help and if you can tell me if I’m right on the bottom question thanks.
Answer:
B
Explanation:
Which phrases describe sedimentary rock?
Answer:
Sedimentary rocks are types of rock that are formed by the accumulation and cementation of small particles of mineral or organic particles on the floor of oceans or other bodies of water at the Earth's surface
Explanation:
Hypernatremia is a condition that can occur in anyone, especially athletes. It’s also a situation that can occur where people do not have drinking water. Normally it does not require hospitalization and can be resolved by doing a simple thing we all do every day. What can correct this condition in a normal, healthy person?
Answer:
The correct answer is - drinking more water and fluid.
Explanation:
Hypernatremia is a condition in which the body losses too much water or body fluid and the case of dehydration took place which leads to the low serum sodium concentration. The serum sodium concentration is under 145 mmol/L in this condition.
This occurs due to loss of body fluid due to sweating, diarrhea injury, or drinking very little water. To correct or treat this treatment in a healthy person it is asked to drink plenty of water and other fluids to maintain body fluids.
Hypernatremia is a medical condition that occurs when an individual doesn't
take water . It is also caused by increase in sodium levels and a
corresponding decrease in the water levels.
This condition have characteristic symptoms such as extreme thirst,
unconsciousness, weakness and death in severe conditions .
The condition can be corrected by intake of a lot of water every day so as to
help maintain a concentration equilibrium in body fluids.
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PLEASE HELP! THIS IS DUE IN THE NEXT 10 MINUTES! - Dave is working with a compound microscope. What lenses and knobs combination does he need to use to find the specimen on the slide?
Answer:
Why do you need to start with 4x in magnification on a microscope? The 4x objective lens has the lowest power and, therefore the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective
Explanation:
why is water necessary to your body
Answer:
body weight is about 60 percent water, Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.
1. Why is cell division important
Answer:
Cell division is important because it serves as a means of reproduction in unicellular organisms through binary fission.
True or false?
Birds and reptiles are homeothermic
Answer:
False
Explanation:Most mammals, including humans, as well as most birds are endothermic homeotherms, while most fish, invertibrates, reptiles, and amphibians are ectothermic poikilotherms.
I'm not very good in science but i hope this helped (b ᵔ▽ᵔ)b
It is clear that the brain is an important part of the body. One of your classmates has been recruited to be a subject in a fictional experiment looking at the functions of the various regions of the brain. The researcher is conducting the "removal studies" in order to better identify these functions. All participants has been given the choice of which brain structures she/he is willing to give up. What advice would you give your classmate concerning which three brain structures would you would recommend she/he be willing to give up and which structures to keep? Why? You do not have to remove an entire division, like the forebrain, rather it can be a one single portion of the the division.
Answer:
Prefrontal Cortex. People who have successfully have their Prefrontal Cortex removed via lobotomy have demonstrated diminished intensity in emotions and a more stable personality. Others described their demeanour as child-like.
Left Hemisphere. Removal of the left hemisphere has been done successfully in the past using a procedure called Hemispherectomy. One case reports a five-year-old who due to seizures had the left part of his brain removed completely.
He went on to live a normal life and even developed some superior skills especially in the area of language.
Occipital Lobe
There is a case with a boy who was only 6 years and 11 months when the removal of the occipital lobe amongst other parts was performed on him. By the time he was 11, his brain had rewired itself.
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A cell that is 30% water is in a solution in a beaker that is 30 % salt. Is the cell hypertonic,
Hypotonic or Isotonic to the solution?
Mr. Carlton’s children love to chase and pop bubbles. Mr. Carlton purchased three brands of bubbles, and tested each to determine which brand produced the bubbles with the largest diameter.
Iv:
Dv:
c:
Answer:
3456=987
Explanation:
567=879
Mr. Carlton purchased three brands of bubbles and tested each brand, producing the bubbles with the largest diameter.
Independent: the brands used
Dependent: the size of the bubbles
Constant: bubbles.
What is an experiment?A scientific experiment is an experiment that is done to calculate or check out a reason for scientific things to happen.
It is done with variables, these variables are controlled independently and dependent. Scientific experiment container hypothesis, and it is done by properly regulated methods and instruments.
The bubble will remain constant throughout the experiment, and the dependent variable will be the diameter of the bubble.
Therefore, the variables are Independent: the brands used
Dependent: the size of the bubbles
Constant: bubbles
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