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zaharov [31]
3 years ago
6

HELP with all 3 of them please ​

Biology
1 answer:
Umnica [9.8K]3 years ago
8 0

21: 1

9: gmo

20: i dont know sorry.

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-why is respiration important for a cell?
Grace [21]
Respiration is how animal cells get their energy to preform their necessary functions. Plant cells don't use respiration, because they use photosynthesis. Photosynthesis turns light into energy.

Tid-bit of info:
Cellular Respiration Formula:
Sugar + Oxygen = Carbon Dioxide + Water <span>+ ATP </span>
C₆H₁₂O₆ + O₂ = CO₂ + H₂O <span>+ ATP </span>
Photosynthesis Formula: 
Sunlight + Water + Carbon Dioxide = Oxygen + Sugar
Sunlight + H₂O + CO₂ = O₂ + C₆H₁₂O₆
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4 years ago
Help!!Quickk!!!!!!!!!!!!
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Answer:

Moons motion without gravity

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Since theoretically there is no gravity to pull the moon in, it would continue to move through space in a straight line
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The most important factor in decreasing the intracellular concentration of calcium ion after contraction is
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Answer:

Active transport of calcium into the sarcoplasmic reticulum.

Explanation:

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  • In response to an action potential traveling along the t tubule, voltage-sensitive proteins change shape, opening calcium channels in the adjacent terminal cisterns of the sarcoplasmic reticulum.
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3 years ago
Which basic function of life is exemplified when a single-celled organism uses its eyespot to sense light?
maria [59]

Answer:

Responding to changes in its environment

Explanation:

Light is an environmental factor and being able to sense and react to environmental changes is a function of life

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3 years ago
The biconcave cells in blood that lack nuclei when they are mature are the __________
34kurt

The biconcave cells in blood that lack nuclei when they are mature are the red blood corpuscles.

<u>Explanation:</u>

The blood contains a combination of cells especially the Red blood corpuscles, white blood corpuscles and the blood platelets. The major function of the Red blood corpuscles is to carry oxygen and supply to all the parts of the body from the lungs and similarly carry carbon dioxide and supply to all parts of the body . To facilitate this it does not have a nuclei.

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