WILL GIVE 20 POINTS + BRANLIEST ANSWER "Write all possible genotypes for plants with the following phenotypes"

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

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.

What causes darkening of the skin as melanin production increases