Which order shows the levels of organization from smallest to largest?

a. cell → organ → tissue → organ system → organism
b. cell → tissue → organ → organ system → organism
c. cell → organ system → organ → tissue → organism
d. cell → organ → organ system → tissue → organism

b

Explanation:

The smallest thing is a cell.. and a group of cells make up a tissue, and a group of tissues makes up an organ, and so forth. So, your answer is B

Hope this helps :)

B. cell → tissue → organ → organ system → organism

Explanation:

I TOOK THE TEST

this protocol describes a detailed procedure for intracellular flow cytometry staining.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".