Unlike other mammals, female monotremes do not have
a. specialized teeth.
b. nipples.
c. mammary glands.
d. hair.

What is the farthest destination to date for a human spaceflight mission?

Select the correct answer from each drop-down menu proteins are

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna