Insects have olfactory sensors on their while snakes have them on the roof of their mouths.

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?