Which of the following tools can be used to see (and count) an organism's chromosomes?
Karyotype
DNA fingerprint gel
polymerase chain reaction (PCR)
pedigree

In what for do plants utilize nitrogen? why do they need nitrogen?

What maintain homeostasis when a persons internal body temperature is 97.5°f

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean