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Vadim26 [7]
3 years ago
15

Which statement best describes the function of capillaries, arteries, and veins in the circulatory system?

Biology
1 answer:
Scorpion4ik [409]3 years ago
8 0
The correct answer is<span> C. Capillaries deliver blood to individual cells; veins generally deliver oxygen-depleted blood to the heart; arteries generally bring oxygen-rich blood away from the heart.

That is why the color of the veins is blue, because oxygen depleted blood is much darker than regular blood, so the veins are darker than arteries who have oxygen rich blood.</span>
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Gizmo Warm-up
Helen [10]

Answer: no

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3 0
3 years ago
What happens when troponin and tropomyosin block the active sites of actin?
EleoNora [17]

Answer:

The correct answer is "It prevents spontaneous muscle's contraction".

Explanation:

Muscle contraction is produce by the interaction of actin and myosin filaments. Basically, myosin binds to the active sites of actin, which produces a protein complex (known as actomyosin) that allows that the filaments slide past each other and generate a contraction. When troponin and tropomyosin block the active sites of actin prevents spontaneous muscle's contraction, because a nervous impulse is needed to remove the inhibitors and that myosin starts the contraction.

5 0
3 years ago
How long can yogurt be left out at room temperature?
Nina [5.8K]
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5 0
4 years ago
Design an experiment where you would determine how quickly lactaid works to break down milk sugar
xxMikexx [17]

Answer:

Gather 11 Cups And then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As A Control take another cup and do not add any lactaid. After 1 Minute, pour a known quantity of benedicts into cups of milk. Record the colour ( blue is the least amount of glucose progressing to green, then yellow, orange, red and brick/red brown). Take another cup of milk and then add the lactaid and wait for 5 minutes... Next is add the benedicts. Record the color, repeat steps 7 - 10 adding 5 minute each time until there are no cups left ( 15 minutes, 20,25,30,35,40,45) .

For the last is graph the data and forms conclusions ..

  • This is the right answer.
  • Hope it helps.
6 0
2 years ago
What are some factors that might cause changes in the population of grasshoppers?
nika2105 [10]

Answer:

Some factors that might causes changes in the population of grasshoppers are:

1. Weather

2. Cultivation

7 0
3 years ago
Read 2 more answers
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