Rhizobia are bacteria that live on the roots of some plants, such as legumes like pea plants. rhizobia convert an element in the atmosphere into ammonia. identify and explain the type of relationship this represents.

a) it is parasitism because the bacteria absorbs food from the pea plant.

b) it is commensalism because the bacteria and pea plant don't harm each other.

c) it is competition because the rhizobia and pea plant both need the limited amount of available nitrogen.

d) it is mutualism because the bacteria receives carbon from the pea plant, while the plant uses the ammonia to make amino acids.

(D) It is mutualism because the bacteria receives carbon from the pea plant, while the plant uses the ammonia to make amino acids.

Explanation:

It's Correct on USATestPrep!

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.