D that's the awnser
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Answer:
Option A
Explanation:
The concentration of salt is lesser than the concentration of salts in the solution. The membrane of the cell is permeable and hence it shall allow movement of salt ions towards the region of lower concentration from the region of higher concentration in lieu to the concentration gradient formed (supported by differences in concentration of salt within and outside the cell). Like the movement of salt, the water shall also move from region of high concentration to region of low concentration and thus water will move out of the cell thereby shrinking it.
Hence, option A is correct
The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.
Answer:
The given statement is true.
Explanation:
The oxygen that is present in the atmosphere has two main sources:
Terrestrial Plants: As we know that the plants make use of sunlight, water, carbon dioxide and chlorophyll in a process termed as photosynthesis and make glucose and releasing oxygen into the atmosphere which is then used by animals for respiration. This is one of the major source of oxygen in the atmosphere.
Oxygen released from Oceans: In the oceans of the earth, water bodies ,seas tiny plants termed as Phytoplankton are present that are present near the surface of the water bodied that also release oxygen by photosynthesis and account for about 50% of the world's oxygen supply.
Answer:
biotic preservation
Explanation:
preservstion means to store or to save,