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-BARSIC- [3]
2 years ago
11

How long does it take for a full term newborn to get over respiratory distress syndrome?

Biology
1 answer:
blagie [28]2 years ago
5 0
I need the answer too

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In fast-twitch oxidative-glycolytic fibers, their rapid increases in force rely on the ________ activity where rapid relaxation
Kitty [74]

Answer:

1. myosin ATPase

2. Ca2+-ATPase

Explanation:

ATPase activity of myosin head hydrolysis ATP and energize the myosin head. The energized myosin head forms cross bridges to facilitate the power stroke of muscle contraction. The fast-twitch oxidative-glycolytic fibers have the ability to produce ATP by aerobic respiration.  

These fibers have the  ATPase in their myosin heads that hydrolyze ATP three to five times faster than the myosin ATPase in slow fibers. This ensures the faster speed of contraction of these fast-twitch muscle fibers.

During their relaxation, Ca2+ ATPase pumps the calcium ions back to the sarcoplasmic reticulum. As the level of Ca2+ ions in the sarcoplasm decreases, calcium ions are released from troponin. Tropomyosin is allowed to cover the myosin-binding sites on actin and the muscle fiber relaxes faster.

4 0
2 years ago
Biology help please I really need help
Elena L [17]

my answer would be the 3rd one

my bad if i'm wrong

3 0
3 years ago
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d. What is the general term for organisms that live in soil and fallen leaves on the forest floor? What is one example of them?
Ivanshal [37]

Answer:

Edaphon, Leaf litter and earthworm

Explanation:

  1. Edaphon is the general term used to reffer to the animals and plants present in the soil.
  2. On the other hand, there is not only one name for the fallen leaves on the forest floor. It could be either plant litter, leaf litter or even tree littler. Although the name suggests it is only leaves, this <u>plant litter</u> could include leaves, barks and twigs that can fall off a tree.
  3. The edaphon its made up of thousands of organisms including a huge number of bacteria, fungi, and arthropods. A good example of organisms living in the soil is an earthworm. Earthworms crawl through the soil feeding from it, digesting part of the organic material and fertilizing it with their excrement.

7 0
3 years ago
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Which graduated cylinder is suitable for use?
damaskus [11]
It is useful and the cylinder graduated for us
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3 years ago
A zoo or aquarium can only be accredited if:
MrRissso [65]
What are the test options?
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3 years ago
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