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andrew-mc [135]
3 years ago
11

What caused the creation of mitochondria?A. One cell took over another cellb. Life forms became more complicatedc. Cells needed

more energyd. DNA was shared between cells
Biology
1 answer:
Hatshy [7]3 years ago
4 0

Answer:

A. One cell took over another cell

Explanation:

Mitochondria is an organelle present in a eukaryotic cell that performs the function of producing ATP molecules from the available substrates in the cell.

The mitochondria organelle has its DNA other than the cellular DNA which shows that it was once an independent organism. This was proved by the endosymbiotic theory that during the formation of the eukaryote cell, the proto-eukaryote engulfed the chemosynthetic bacteria which later formed the symbiotic relationship with the cell and evolved into the mitochondria.

Thus, Option-A is the correct answer.

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quizlet i]n the heart, valves are located in the heart, valves are located just between the ventricles and the arteries. just be
ser-zykov [4K]

In the heart, the valves are located between atria and ventricles and between ventricles and arteries (option D).

<h3>What are valves in the heart?</h3>

Valves are membranous partitions which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction.

Valves in the heart enforce a one-way blood flow through the heart and separate atria from ventricles, and ventricles from the large arteries that leave them.

The four valves in the heart and their location is as follows:

  1. tricuspid valve: located between the right atrium and the right ventricle
  2. pulmonary valve: located between the right ventricle and the pulmonary artery
  3. mitral valve: located between the left atrium and the left ventricle
  4. aortic valve: located between the left ventricle and the aorta.

The valves between the atria and ventricles are called atrioventricular valves or cuspid valves while those at the bases of the large vessels leaving the ventricles are called semilunar valves.

Therefore, it can be said that the valves of the heart are located between atria and ventricles and between ventricles and arteries.

Learn more about valves of the heart at: brainly.com/question/28266922

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5 0
2 years ago
1 pts A woman with Type B blood who's father was Type O blood marries a man with Type AB blood. What are the possible blood type
Naddika [18.5K]

Answer:

The children can have all of the following, AB, A and B.

Explanation:

Within a Punnett square, BO and AB can only make AB, Ao, BB and BO.

4 0
2 years ago
What is another term for the hot springs found on the ocean floor?
Dmitry_Shevchenko [17]
I think it's hydrothermal vents? hope its right because I have short term memory loss.
6 0
3 years ago
Read 2 more answers
The structure of a human skin cell differs from that of a human muscle cell. The two cells most likely have different __________
AnnyKZ [126]

Answer:

The correct answer would be - functions.

Explanation:

The structure of the skin cells and muscle cells are different and have a different number of cell organelles on their role in the body. Skin cells are a special type of cells that keep on shedding and replaced by new ones therefore they need less energy and have many mitochondria.

In contrast, muscle cells have different structures as they need a high amount of energy to make movements and therefore have lots of mitochondria in the cell.

7 0
3 years ago
In the life cycle of humans when does mitosis occur
garik1379 [7]
Around 40 weeks is when it occurs

4 0
3 years ago
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