Alex is examining a mollusk. it has filter-like structures for feeding, and it moves using a muscular foot.

which mollusk is alex most likely examining?

a) a clam, which is a bivalve
b) a clam, which is a cephalopod
c) a nautilus, which is a cephalopod
d) a nautilus, which is a bivalve

In an hydrogen ion pump the energy is used to join small molecules together to make larger ones which factor most likely has the greatest effect on the number of molecules mitochondria can produce

When mitochondrial dna from living relatives was compared with mitochondrial dna from the skeletons, scientisits determined that skeletons 3,4,5,6 and 7 were members of the romanov family. which of these skeletons can be identified by name based on the evidence you have? explain your answer.

Which of the following molecules will diffuse most quickly across a lipid bilayer membrane? a. h2o b. o2 c. h2po4 d. glucose e. na+