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.

For their summer holiday, jane and her family are visiting places surrounding the mediterranean sea. which type of biome is jane and her family visiting? a. rainforest b. shrubland c. tundra d. coniferous forest

Two male mice, which we will call male a and male b, are both phenotypically normal. male a was from a litter that contained half phenotypically normal mice and half dwarf mice. the mother of male a was known to be homozygous for the normal igf2 allele. male b was from a litter of eight mice that were all phenotypically normal. the parents of male b were a phenotypically normal male and a dwarf female. male a and male b were put into a cage with two female mice that we will call female a and female b. female a is a dwarf and female b is phenotypically normal. the parents of these two females were unknown, although it was known that they were from the same litter. the mice were allowed to mate with each other, and the following data were obtained: female a gave birth to three dwarf babies and four normal babies. female b gave birth to four normal babies and two dwarf babies. which male(s)mated with female a and female b? male a with both females male a with female b, and male b with female a male a with female a, and male b with female b could not be determined male b with both females

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.