1) In the aquatic ecosystem shown, which organism would be considered a secondary consumer? A) pike B) perch C) mosquito larvae D) dragonfly larvae

D.dragonfly larvae

Explanation:

For example ;

This is a simple food chain;

algae ⇒ mosquito larvae ⇒dragon fly larvae ⇒perch

Algae are the producers in the food chain above.

Mosquito larvae are the primary consumer in the above food chain.

Dragonfly larvae is the secondary consumer in the food chain which feed on the primary consumer.

The final level is perch, which is a carnivore .

Out of the given options, the secondary consumer is perch.

Explanation:

The four given options are arranged in a food chain as follows

mosquito larvae>>Dragonfly larvae>>Perch>>Pike

Here Dragonfly larvae is the primary consumer, perch is the secondary consumer whereas Pike is the tertiary consumer.

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.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation: