You have a strand of hair from a crime scene but can’t tell if it is from an intruder or the family dog. if the hair otherwise looks similar on initial examination, you’d want to examine the: medulla nucleus root follicle

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote