3. What is an example of a learned behavior for puppies? Playing with litter mates
Eating
Breathing
Panting to stay cool

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z