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Fofino [41]
3 years ago
8

During the cardiac cycle, the bicuspid valve closes:

Biology
1 answer:
Fiesta28 [93]3 years ago
3 0
The correct answer is C
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Egg and sperm cells
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Contain 46 chromosomes each
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3 years ago
A graduated cylinder contains 10mL of water. A rock is dropped into the cylinder and the water level rises to 17mL. What is the
Travka [436]

Answer:

<h3>7 milliliters or 7 cubic centimeters</h3>

Explanation:

1 cubic centimeter = 1 milliliter

You can measure the volume of a rock using cubic centimeters because rocks do not have a defined shaped so you have to use water displacement to find the volume of a rock. If you had a defined shape there are different methods but for an undefined shape( rocks) you use this method.

To solve all you have to do is know how much there was in the container without the rock then how much there was with the rock. Then you take the total and subtract the original measurement you had.

17-10=7 mL or 7 cubic centimeters

5 0
3 years ago
Read 2 more answers
These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses. ______
sertanlavr [38]

Answer:

The best answer to the question: These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses, would be: T-Tubules.

Explanation:

In both skeletal and cardiac muscle, not smooth muscle, because of the way that the muscle fibers are conformed into tight bundles of sarcomeres (skeletal muscle) and myocardiocytes (cardiac muscle), there is a need for a series of structures that will ensure that when there is a stimulus from the nervous systems, these stimulus will propagate to all the cells in the fibers, and not just one.

Aside from counting with a neuromuscular motor plate, which will receive the neurotransmitter from the nerve endings and produce the appropriate reactions, as well as propagate that reaction to all the cells that are being stimulated, muscle fibers also have a structure known as T-Tubules. T-Tubules are formations much like roadways of cell plasma membrane that connect not just one, but all the cells within a muscle fiber so that once a stimulus comes, all the cells will initiate the process of calcium release and action potential propagation. These T-Tubules will ensure that electrical impulses reach all muscle cells and that all cells react at the same time as needed.

5 0
3 years ago
The hormone insulin is secreted by the pancreas. Which activity is MOST likely to
Oksana_A [137]

Answer:

Eating

<em><u>Hope this helps! <3</u></em>

6 0
3 years ago
Why does water feel cool when it evaporates?
Naddika [18.5K]

Answer:

i think its A

Evaporation uses energy, and this heat energy is taken from the body.

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2 years ago
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