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Serggg [28]
2 years ago
15

What do sea stars have on the bottom of their feet that allows them to stay anchored on a rock or at the bottom of the ocean?

Biology
2 answers:
ipn [44]2 years ago
8 0
The answer is A, Suction Cups
Alex787 [66]2 years ago
5 0
A. Suction cups  They help them stick to a rocky surface
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Diffusion is a passive process that accounts for the movement of respiratory gases across the capillary membranes of alveoli.
strojnjashka [21]

Answer:

True

Explanation:

Diffusion is a passive process (no energy required) in which the substance such as liquid and gases moves from an area of high concentration to an area of low concentration.

During respiration, carbon dioxide diffuses from the blood into the alveoli and oxygen diffuses from alveoli to blood across the respiratory membrane. The partial pressure of oxygen is low in the blood of the pulmonary capillaries and high in the alveoli. so diffusion allow movement of oxygen across the respiratory membrane from the alveoli into the blood.

Hence, the given statement is true.

4 0
3 years ago
after carbohydrates and proteins are digested, what types of smaller nutrients are absorbed into the blood
azamat
Small sugars (monosaccharides and disaccharides) glucose fructose, sucrose etc
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3 years ago
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What plant tissue located at the tips of roots and shoots will differentiate into different plant cells?
vladimir2022 [97]

Answer:

meristems

Explanation:

8 0
3 years ago
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(oxygen, electron transport chain, chemiosmosis, NADPH)
Vaselesa [24]

Hai there :3 I'm planning to study chemical engineering.

Question related to Biochemistry (Photosynthesis & Cellular Respiration)

1. Chemiosmosis.  In the process of chemiosmosis, specific enzymes (such as ATP synthase) create ATP. Hydrogen ions go from a higher proton concentration to a lower one, which is why it's called chemio"osmosis"

2. Electron Transport Chain (ETC). The name says it all. Simply explained, electrons are transported and transferred in the mitochondrial membrane.

3. Oxygen. O2, the diatomic molecule, is essential in respiration. In the final stage of respiration, at the near end of the electron transport chain, oxygen accepts protons to become water. Cells use O2 during oxidative phosphorylation.

4. NADPH. I remember learning what this acronym means by heart. Nicotinamide Adenine Dinucleotide Phosphate Hydrogen. NADPH is essential in photosynthesis as a typical coenzyme in the reduction of chemical reactions.

6 0
3 years ago
The canal connecting the third and fourth ventricles and running through the midbrain is the interventricular foramen.
jeyben [28]

Answer:

The answer is false. The correct answer is cerebral aqueduct.

Explanation:

Because the foramen is the area that connects the third ventricle of the brain to the two lateral ventricles.

The canal connecting the third and fourth ventricles is called cerebral aqueduct.

4 0
3 years ago
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