Pretend you are at the zoo and are observing a primate exhibit featuring monkeys. What traits could be used to determine whether the exhibit features a New World or Old World monkey species

Stub for a thumb or no thumb, overall size, shape of fingernails and shape of nostril.

Explanation:

Old world monkeys had no stub for a thumb or had no thumb while the New world monkeys posses this feature.

The overall size of the Old world monkeys was greater than those of New world monkeys.

Old world monkeys had flat fingernails but sharp fingernails have been found in New world monkeys.

Nostrils in the Old world monkeys are narrow and pointed downward but in the New world monkeys the nostrils are round in shape.

answer; i believe the correct answer is (a)0

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!