The pictures show some geranium plants. They all belong to the same species but show variations. Describe two other ways in which these geranium plants show variations.

a) Root system and flower colour
b) Leaf and flower colour
c) Both of theses
​

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.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Vessels draining the myocardium of the heart, open primarily ,into which chamber?