Cells can have two kinds of endoplasmic reticulum (er): smooth er, which has no
ribosomes, and rough er, which has ribosomes embedded in its membrane. what
would happen if the rough endoplasmic reticulum in the cell of an organism lost all
of its ribosomes?
a. atp production in the cell would stop.
b. protein production in the organism would stop.
c. storage of proteins within the cell would increase.
d. proteins would no longer be exported from the cell.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.