While looking at some seawater through your microscope, you spot the egg of an unknown animal. which of the following tests could you not use to determine whether the developing organism is a protostome or a deuterostome?
a) see whether the ectoderm forms the mature animal's skin/exoskeleton or invaginates to form its gut tissue.
b) see whether the pore formed during gastrulation becomes the mature animal's mouth or its anus.
c) see whether the animal exhibits spiral cleavage or radial cleavage during early development.
d) see whether the coelom is formed from a split in the mesoderm or from mesodermal pockets pinched off the gut.

The answer is letter C

Explanation:

See whether the animal exhibits spiral cleavage or radial cleavage during early development.

the answer is A cuz i just took the test

Explanation:

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

idk

explanation: