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antiseptic1488 [7]
2 years ago
14

In order to beat, the heart needs three types of cells. describe the cells and their function.

Biology
1 answer:
yulyashka [42]2 years ago
4 0
1. Rhythm generators (SA node)
2. Conductive cells (node cells)
3. Contractile cells (myocardial cells)
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The aquatic plant Elodea is commonly used to study photosynthesis. You put some Elodea in a test tube, shine light on the plant,
Marrrta [24]

Answer:

The photosynthetic rate refers to a determination of maximum rate at which leaves possess the tendency to fix carbon at the time of photosynthesis. The simple way by which the photosynthetic rate can be determined is by measuring the concentration of carbon dioxide produced.  

It is known that the concentration of carbon dioxide, light intensity, and temperature are the three main elements, which affect photosynthesis. The enhanced concentration of carbon dioxide and higher light intensity results in higher photosynthetic rates.  

In the given case where Elodea is used to study photosynthesis, it can be seen that at high light intensities, the concentration of bubbles increases as there is an elevation in the concentration of carbon dioxide.  

8 0
1 year ago
The thin segment of the nephron loop's descending limb ________. The thin segment of the nephron loop's descending limb ________
vovangra [49]

Answer:

The correct answer is ''aids in the passive movement of water out of the tubule''

Explanation:

The nephron loop has a descending branch, which goes to the renal medulla, and an ascending branch, which goes back to the cortex. The nephrons of these kidneys can have loops of Henle of different dimensions. The thin segment of the loop has thin epithelial membranes, its cells are highly permeable to water, but not to solutes. The water that exits from the descending portion of the nephron loop into the medullary space is immediately reabsorbed by the peritubular capillaries, causing osmolality to increase in both the tubular fluid and the medullary interstitial fluid. The characteristics of the descending branch differ from one species to another, the normal thing is that in one way or another, the osmotic concentration of the urine that moves through it is balanced with that of the interstitial fluid.

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1 year ago
A person eats a large pasta meal at lunch and then goes for a run before dinner. Explain how the body taps energy from this star
Ilia_Sergeevich [38]

Starches help give you an extra boost of energy during your workout. Starches, as well as sugars, eventually break down into glucose -- your body's main fuel source.

Explanation:

When you eat starchy foods, you'll have a supported energy level over a period of numerous hours. This is separate from sugars, which are simple polysaccharides that give you a quick surge of energy but do blank to keep your energy levels running.

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1 year ago
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Four Students were having a discussion about how scientists do their work. This is what they said... Antoine: "I think scientist
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Answer:

Please see below  

Explanation:

Between all these kids carrying out this discussion, Tamara is the closest to guessing what scientists do. There is indeed a definite set of steps that scientists undertake in order to conduct science experiments. The scientific method is as follows:  

  1. observation
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2 years ago
Suppose you're studying levels of job stress and measures of job efficiency in a nursing home. Which one of the following statem
Mariulka [41]
D-As stress levels increase, job efficiency increases is the correct answer.
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