Which of the following statements best describes chromosomes?
a. humans have more than 460 chromosomes in every cell of the body.
b. chromosomes are threadlike structures that carry genetic information.
c. humans receive the majority of their chromosomes from their mother.
d. chromosomes are arranged in 20 distinct pairs in the human body.

B: Chromosomes are threadlike structures that carry genetic information.

Explanation:

on edge2021~

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

hope i

-lavira: )