After concluding his research, which statements would virchow agree with? check all that apply.

a. living things come from nonliving things.

b. cells can come from nonliving materials.

c. frogs can come from mud.

d. living things can only come from living things.

e. cells come from pre-existing cells.

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

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.