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NikAS [45]
3 years ago
9

Which seedless plants are used to treat burns

Biology
1 answer:
Yanka [14]3 years ago
8 0

club mosses mosses ferns horsetails.

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You isolate some muscle fibers to examine what regulates muscle contraction. When you bathe the muscle fibers in a solution cont
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Answer:

Experiment 4. Relaxed, the drug will stop the calcium so that it does not act on the troponin

Experiment 5. Contraction: In order for the muscle to relax, the actin and tropomyosin union must occur.

Experiment 6. Relaxation: the release of the actin-myosin complex occurs with consumption of ATP, thus it slides and generates contraction, by adding a hydrolyzable analog, this reaction is avoided giving rise to a prolonged actin-myosin binding which leads to relaxation while last effect.

Experiment 7. Ca2 + Contraction is very necessary so that during muscle contraction troponin can be extracted.

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1. The Earth experiences days and nights due to the:
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C. Rotation on its axis
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Describe chlorophyll a and tell its function.
sleet_krkn [62]
<span>Chlorophyll is any of many closely related green pigments found in cyanobacteria and the chloroplasts of algae and plants, and the function of it is that is absorbs energy from light.</span>
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3 years ago
British scientist who first observed cells under a microscope was _____
Sav [38]

Robert Hooke is the first person to observe cells as microscopic structures.

He was of British descent and, fun fact, he discovered cells by looking at a sliver of cork under a microscope lens (although the 'fun fact' is heavily simplified).

7 0
3 years ago
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Explain how the boiling of water and the cooling of water vapor is a reversible reaction.​ With hydrogen bonds between water mol
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When water is boiled water molecules changed into vapors when these vapors condensed water changed into liquid.

So it is reversible reaction.

Explanation:

Water molecules are connected through the hydrogen bonding. When water is boiled the kinetic energy of water molecules increased and point is reached when kinetic energy is so high and water molecules overcome the external pressure and escape from the surface. Thus water molecules convert into vapors.

In case of cooling process extra energy is released. Vapors becomes cooled and kinetic energy decreased vapors are changed into liquid state.

When water is boiled water molecules changed into vapors when these vapors condensed water changed into liquid.

So it is reversible reaction.

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3 years ago
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