Which gas is a source of natural groundwater pollution ? a. hydrogen b. radon c. carbon d. oxygen

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.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks