Look at the overall view of the onion root tip. Which phase does it look like most cells are in? Why are most cells in this phase?
Answers
Hello. You did not present the image to which this question refers, which makes it impossible for this question to be answered. However, I will try to help you in the best possible way.
I believe you are looking at cells from the tip of the root, in an experiment where the tip of the root of the onion was cut. To redo the tip of the root, the onion cells will undergo mitosis, which is the cell division where a cell originates from two identical cells.
Mitosis has five phases and all of them can be seen in the onion root cells according to the following characteristics:
1. Interphase: it is the moment when the cells increase in size and intensify their metabolic activity. The cells of the onion root will be in this phase when they appear as a completely dark and filled circle.
2. Prophase: The chromosomes condense and become visible and the cell membrane is flawed. In the cells of the onion root, you will be able to see this phase in cells that appear as an irregular circle, with a tangle of lines scattered inside.
3. Metaphase: The chromosomes condense further and connect to the spindle lines that are in the center of the cell. In the onion root cells, you will identify this phase in circles with a tangle of lines that are concentrated in the center of the cells.
4. Anaphase: The centromeres are separated and the sister chromatids migrate to the poles of the cell. You will be able to see this phase in cells that have a concentration of lines at both ends of the cell.
5. Telophase: the chromosomes are decondensed and the cell membrane is formed again while the cell separates into two. You will see this phase with the presentation of two cells.
To improve your understanding, the attached figure below shows how the cell appears in each phase.
Related Questions
Describe an experiment to show that
Shoots are positively phototrophic.
Answers
Answer:
A well-watered potted plant is placed inside the box. If the window is kept closed for about 24 hours the plant shows normal growth. If the window is kept open, it is found after two days that the shoot tip bends and grows towards light proving that it is positively phototropic.
Explanation:
Hope this helps! Brainliest pls?
is Bacteria used in photosynthesis.
Answers
Answer:
They carry out oxygenic photosynthesis i.e, they use water as an electron donor and generate oxygen during photosynthesis. Their photosynthetic systems closely resembles to that of eukaryotes: These bacteria use Phycobilins as accessory pigments. CO2 in these bacteria is assimilated through calvin cycle.
Explanation:
Answer:
NO
sorry there is no explanation
Which are characteristics of all bacteria? Check all that apply. NO LINKS
1. They lack a nucleus.
2. They have a nucleus.
3. They eat other organisms.
4. They make their own food.
5. They are eukaryotes.
6. They are prokaryotes.
Answers
Answer:
1. They lack a nucleus
4. They make their own food
6. They are prokaryotes
Explanation:
Look at the image. Which two
bases bond together in DNA?
A. Adenine-Guanine
B. Adenine-Thymine
C. Adenine-Uracil
D. Adenine-Cytosine
Answers
Answer:
The answer is B, adenine and thymine
Answer:
its b
Explanation:
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Answers
What test is used to determine if the parents are carriers for Prader Willi syndrome prior from pregnancy?
Answers
Answer:
Noninvasive Prenatal Screening (NIPS) also called Noninvasive Prenatal Testing (NIPT)
Explanation:
Write a balanced chemical equation between
potassium hydroxide and
hydrochloric acid.
Answers
Answer:
HCl + KOH = KCl + H2O
Explanation:
i am not sure if I got it right, but I think this is a balanced equation
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27 degrees celeius. What gas is being made?
Answers
Answer:
Oxygen
Explanation:
Plants in the presence of sunlight (a major requirement) are capable of manufacturing their own food via the process of PHOTOSYNTHESIS. Photosynthesis combines carbon dioxide (from atmosphere) and water (from soil) to produce glucose (carbohydrate) and oxygen gas (as a waste product). The equation as follows:
6CO2 + 6H2O ➡ C6H12O6 + 602
According to this question, a student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The process carried out by the plant exposed to the bright light is PHOTOSYNTHESIS, hence, the gas given off is OXYGEN.
1. Which of the following serves as the passageway of eggs from the ovary to
the uterus?
a. Vagina
b. Uterus
c. Oviduct
d. Ovary
Answers
Answer:
in a human? its D or C...
Explanation:
where does respiration take place?
Answers
Answer:
Mitochondria
Example:
Respiration takes place in the mitochondria of cell in the presence of oxygen which is called aerobic respiration.
The larvae of potato beetles cover themselves in their own feces to avoid being consumed by predators. What system produces feces?
Answers
Answer:
Explanation below
Explanation:
Hemisphaerota cyanea, also known as the palmetto tortoise beetle, is a type of leaf beetle that cover themselves with their own feces, just to persuade most predators to pass them by. This form of outrageous defense, developed by the crafty beetle, was discovered by biologists at the Cornel university.
The feces comes out of the hindgut of the beetle, fashioned like golden strands, which can be used to protect the vulnerable body of the beetle.
Do you think the organisms in image 3 support the theory that modern organisms evolved from ancestral organisms? Explain your answer.
Answers
Answer:
occurs when these heritable differences become more common or rare in a population, either non-randomly through natural selection or randomly through genetic drift.
Answer:Yes, the organisms in image 3 support the theory that modern organisms developed from ancestral organisms. The two organisms share similar body structures and traits. So, there will be similarities in their genes, and they’ll share an evolutionary connection.
Explanation: Edmentum answer
What are the similarities and differences between phototropism and gravitropism?
NEED HELP ASAP
Answers
Answer:
phototropism is (biology) the movement of a plant towards or away from light while gravitropism is (biology|botany) a plant's ability to change its growth in response to gravity
A group of atoms bonded together is a molecule.
A. True
B. False
Answers
Answer:
A. True
Explanation:
A group of two or more atoms that are chemically bonded together is known as Molecule
-TheUnknownScientist
Which of these most likely explains why the bacteria population stopped
growing?
A. The bacteria came in contact with a virus that killed off the population.
B. The bacteria could not produce any longer because the population was too large.
C. The bacteria competed for nutrients and died after all of the nutrients were
consumed
D. The bacteria evolved into another organism.
Answers
Answer:
C. The bacteria competed for nutrients and died after all of the nutrients were
consumed
Explanation:
Since no other materials were added, this option makes the most sense.
- Explain the relationship between group behavior, an organism's survival, and the change in a species over time.
- Formulate one scientifically testable question related to the affect of group behavior on an individual's survival.
- What evidence could be used to support a claim that answers your scientifically testable question?
Answers
Answer:
https://www.nap.edu/read/5787/chapter/6
https://www.nature.com/scitable/knowledge/library/how-does-social-behavior-evolve-13260245/
Explanation:
I hope that it will be helpful
A producer is also called a(n)
A. autotroph
B. heterotroph
Answers
Answer:
A. autotroph
Explanation:
Hope this helps
An animal with no natural enemy is a ____________.
Answers
Answer:
predator or a.pex predator
An animal with no natural enemy is an apex predator. Apex predators are also known as top predators or alpha predators.
They are species that reside at the highest level of the food chain within their ecosystems. They have no natural predators and primarily feed on other animals. Apex predators play a critical role in maintaining the balance and functioning of their respective ecosystems.
These predators are often characterized by their exceptional hunting skills, agility, strength, and ability to control the populations of their prey. They exert top-down control on the food chain by keeping the populations of lower-level consumers and herbivores in check, which in turn has cascading effects on the entire ecosystem. Thus, apex predators have no natural enemies.
Learn more about apex predators, here:
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What do you think the offspring of a green alien and pink alien will look like?
Answers
Answer:
of the parents' characteristics will appear in the offspring, but the characteristics that are more likely to appear can be ... o If you had the ability to genetically engineer your alien baby (choose its traits),
Describe the structure of the study independent variables , dependent variables and detail why the researchers would have used random allocation.
Answers
Answer:
To reduce systematic error.
Explanation:
The researchers would have used random allocation in order to decreases systematic error in the experiment. If we don't apply random allocation to the experiment, there is high chances of systematic error in the experiment and the result is not of high quality. Independent variables is a type of variable whose variation does not depend on another factor while on the other hand, dependent variables is a type of variable whose variation depend on another factor.
Necesito ayuda Comparaciones del sistema digestivo de los animales: Rana, tiburón, gallina, vaca e iguana
Answers
Answer:
The digestive system of Frog, shark, chicken and cow are the following:
Explanation:
The digestive tract of frog is divided into foregut that consist of esophagus, stomach, duodenum, liver, pancreas, gall bladder and midgut/hindgut where intestine is present. The digestive system of frog comprise of oral cavity, pharynx, esophagus, stomach and intestine. The digestive system of chicken consist of beak, crop, proventricular, ventriculus, small Intestine, large Intestine and Cloaca. The digestive system of cow comprise of mouth, esophagus, rumen, reticulum, omasum, abomasum, small intestine and large intestine.
what did the sparks in miller and urey's experiments simulate
Answers
Answer:
That Molecules could be produced under reducing conditions.
Explanation:
When a strip of zinc metal is added to a test tube of hydrochloric acid, the liquid forms bubbles, and the test tube feels hot. The bubbles are a result of the formation of hydrogen gas. What does the hot test tube indicate?
A.
Hydrogen gas absorbs heat.
B.
The reaction releases heat.
C.
A chemical change has been reversed.
D.
The reaction absorbs heat.
Answers
In class, a student creates an image showing part of the process of protein synthesis.
What occurs in the cell to create the strand of mRNA needed before translation can occur?
Answers
Answer:
Yo the answer is A
Explanation:
What is a modified stem?
A stem that grows underground.
A stem that does not produce leaves.
A stem that bends back toward the ground.
A stem that grows bark.
Answers
Answer:
A rhizome is a modified stem that grows horizontally underground and has nodes and internodes. Vertical shoots may arise from the buds on the rhizome of some plants, such as ginger and ferns. Corms are similar to rhizomes, except they are more rounded and fleshy (such as in gladiolus).
Explanation:
more simple, a stem that grows underground :)
7.
How is the rate of transpiration affected by decreasing temperature and by decreasing light
intensity?
decreasing
temperature
decreasing
light intensity
A
slower
slower
B
slower
faster
С
faster
slower
D
faster
faster
Answers
Answer:
B
slower
faster
Explanation:
Find the area of the triangle.
18 ft
17 ft
The area of the triangle is
fta.
Answers
Answer:
area is add so 17+18 is 35 ft
What leads to the likelihood that that there are successful traits in an ecosystem that will allow organisms to survive and reproduce in changing conditions?
A. less biodiversity
B.smaller food webs
C.greater biodiversity
D.specialist consumers
Answers
Answer: I think it’s C
Explanation: more biodiversity, the more reproduction and success.
Greater biodiversity leads to the likelihood that there are successful traits in an ecosystem. Therefore, option (C) is correct.
What is biodiversity?Biodiversity refers to the variety of species and the genetic diversity within those species that exist within an ecosystem. When an ecosystem has high levels of biodiversity, there is a greater chance that at least some species will have the traits necessary to survive and reproduce in changing conditions.
Organisms with successful traits in one set of conditions may not necessarily have those same traits in different conditions. Therefore, a diverse range of species with various sets of traits increases the likelihood that some of those traits will be beneficial in different conditions.
Learn more about biodiversity, here:
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On East Africa's Serengeti Plains, herbivores migrate across this area following what?
nuts
grasses
rivers
berries
Answers
Answer: Grasses! The north and west crossing the Grumeti River, There where more grass.
how are bacterias different from animals ?
Answers
Answer:
Bacteria are neither animals nor plants.... Because bacteria are prokaryotic, they do not have a nucleus and no membrane-bound organelles. In contrast, plants and animals are made up of eukaryotic cells, which means they have a nucleus and membrane-bound organelles like mitochondria or golgi apparatus.
Explanation:
Answer:
Bacterias have simple cells and are typically single cell organisms where as animals which have more complex cells are are multi celled organisms UwU
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Explanation:
