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Xelga [282]
3 years ago
13

The presence or absence of

Biology
1 answer:
mestny [16]3 years ago
8 0

Answer:

presence of cells

Explanation:

All living things are composed of cells. A cell can be defined as a complex biological arrangement that has all the structures and materials required for life. Cells carry out specialized functions such as, for example, metabolic functions to convert nutrients from food into energy (ATP), and reproduce by mitosis and/or meiosis. Thus, the cell is known to be the basic unit of life.

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Under certain circumstances, potassium ions ( K + ) in a cell will move across the cell membrane from the inside to the outside.
dexar [7]

Answer:

8.18 × 10 ⁻²¹.

Explanation:

The potential energy may be defined as the energy stored in the rest objects. This energy is important for the maintenance of the concentration gradient in the cell.

The change in the potential energy can be calculated as follows:

W = v2-v1 × q.

Here, the charge of the proton is considered because k+ ions has been used.

W= 0 - ( - 70. 5 mV) × 1.602 * 10^-19 C.

W= 8.18 × 10 ⁻²¹J.

Thus, the answer is 8.18 × 10 ⁻²¹.

5 0
3 years ago
Animals can adapt to changing environments by doing all of these things but one. That is A) changing their diet. B) reproducing
murzikaleks [220]
B- Reproducing more often. If the environment is not right for them then reproduction doesn’t help them adapt. They respond by changing behavior, moving to another area, and even modifying their physical bodies (diets included).
8 0
2 years ago
Two ways water travels from land to enter the ocean
Vesna [10]
-Water evaporates and condenses into clouds, then the clouds are blown over the ocean, and it rains.
-Water from a mountain flows down and into a river. The river empties into an ocean.
7 0
3 years ago
Please help! I cant figure it out! Does anyone know ? If the answer is correct ill mark you as the best answer!!
Triss [41]

Answer:

the cell wall

Explanation:

cell membrane is not rough and it doesn't support or protect the cell.

cytoplasm is the inner environment of the cell that includes organelles and nutritions. it's not rough and doesn't support or protect the cell.

6 0
3 years ago
Mrs. Jorgensen keeps a flock of chickens in her back yard. One of the roosters is the result of selective breeding by Mrs. Jorge
elena-14-01-66 [18.8K]

Answer:

Ostrich nevermind dont put  that

Explanation:

5 0
3 years ago
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