What bacteria are found inside the root of legumes, where they receive what from the host plant.

The correct answer is - rhizobia bacteria, found in nodules of plants and receive nutrition and shelter from host plants.

Explanation:

Rhizobia is the bacteria that form nodules in the legume plants that help in biological nitrogen fixation. These bacteria are present in the nodules which is a special structure that where they fix atmospheric nitrogen in the usable form for plants.

They live in symbiosis with the legume plants as they get nutrition and shelter from host and provide fixed form of nitrogen.

Thus, the correct answer is option - rhizobia bacteria, found in nodules of plants and receive nutrition and shelter from host plants.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.