Which of the following is found in a animal cell , but not in a plant cell?A-nuclei
B-centrioles
C-mitochodria
D-central vacuole

Answers

Answer 1

Answer:

The centrosome is present outside the nucleus in an animal cell. It is the structure that contains centrioles. These are the structures that are essential during cell division. The plant cells lack centrioles and are able to divide in their absence.

Further Explanation:

The centrioles are present particularly in animal cells and are located within the centrosome which is present near the nucleus. The centrosome is a granular mass that acts as a center for microtubules. The centrioles are two in numbers and are positioned at the right angle with respect to each other. Each centriole is composed of microtubules forming nine bundles that are arranged in a ring formation.

In an animal cell during interphase, the components of the centrosome along with the centrioles are doubled. Initially, the duplicated pairs of centrioles remain close to each other but with the initiation of mitosis, the pairs tend to separate and get located in the newly formed microtubule-organizing centers. The microtubules are radiated through these centers in the star-shaped clusters called asters. With the movement of asters towards the opposite poles, the microtubules span the cell attaining a spindle-shaped formation. The spindle fibers help in the alignment of chromosomes during their separation at the time of cell division.

In animal cells, centrioles are important for mitosis to take place whereas reproduction in plant cells can occur even without centrioles. The presence of centrioles in animal cells has made mitosis an efficient and error-free process while its absence results in divisional errors and also delays the mitotic process.

Learn More:

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2. Learn more about the structure of epithelium and connective tissue brainly.com/question/4557690

3. Learn more about the secondary function of the lymphatic system brainly.com/question/2909254

Answer Details:

Grade: High School

Chapter: The Cell

Subject: Biology

Keywords:

Cell, centrosome, centriole, granular mass, microtubules, interphase, duplication, cell division, mitosis, spindle formation, asters, microtubule organizing center, chromosomes, reproduction, animal cell, plant cell.

Answer 2

Answer: The answer is C. Hope it helps! :)

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What does the theory of evolution contribute to conservation biology?

Answers

The theory of evolution of Charles Darwin truly made a big impact, not just on science, but also to everyone's mind and beliefs. This theory contributes to the conservation of biology by helping the scientists to study and understand a population of species and on how they can react and change in their own environments. This will help the scientists to possibly save these species.

What is the primary advantage of multiple researchers obtaining the same result? a) Discoveries are more credible when they are independently verified b) Discoveries are less likely to be forgotten years later c) Discoveries are more likely to be disproved by addition

Answers

If multiple researches obtained the same result, it means that the test is highly repeatable ! Highly repeatable results are always very welcomes, because people believe that they have a high validity and high credibility.

So the correct answer is:
a) Discoveries are more credible when they are independently verified

What are the 9 important functions of proteins in your body?

Answers

Answer:

1. growth

2.causes biochemical reactions

3. acts as a chemical messenger that aids communication between your cells, tissues and organs.

4. provides structure

5.maintains proper pH

6. balances fluids in the body.

7.boosts immune health

8. transports and stores nutrients

9. provides energy for you body

Explanation:

Mammals with a carnivorous diet include thea. rabbit, mouse, elephant, zebra, and monkey.
b. bear, badger, fox, human, and rat.
c. aardvark, whale, hyena, dog, dolphin, and mole.
d. giraffe, deer, elk, walrus, human, and rat

Answers

I want to say C. Aardvark, whale, hyena, dog, dolphin, and mole.
All of these mammals eat primarily meat.

B. is a close second, but the human and rat are both omnivores and don't regularly rely on meat for most of their dietary needs.

Answer:

ITS AAAA

Explanation:

In cell biology what does word queue describe

Answers

In biology, when we're talking about queues, we would be most likely talking about the long arm of a monochrome - this is the meaning that has been since a long time assigned to the word queue.

B) the long arm of a chromosome

5. Which example demonstrates that all cells come from pre-existing cells?A. A caterpillar feeds on leaves from an oak tree.
B. An oak tree grows from the seed material in an acorn.
C. Water drips from underneath an oak tree leaf in the morning.
D. Sediment from an area where oak trees were cut down builds up alongside a stream

Answers

The example that demonstrates that all cells come from pre-existing cells is an oak tree grows from the seed material in an acorn (option B).

What is the cell theory?

The cell theory is the scientific theory that all living organisms are made of cells as the smallest functional unit.

One of the components of the cell theory is that all cells come from already existing cells i.e. new cells form from cells that are already in existence in a process of reproduction.

The example of this is a tree that grow from a germinating seed. Hence, option B is correct.

Learn more about cell theory at: brainly.com/question/1468725

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B . An oak tree grows from the seed material in the acorn

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