The keystone species is the one at the bottom of the pyramid, if we look at it like a pyramid. If the grass dies, then the deer cannot get food and die, and the predator cannot eat and dies, and the whole ecosystem can fall apart.
At some convergent boundaries, an oceanic plate collides with a continental plate. Oceanic crust tends to be denser and thinner than continental crust, so the denser oceanic crust gets bent and pulled under, or subducted, beneath the lighter and thicker continental crust. This forms what is called a subduction zone.
Yes, the pterosaurs is the ancestor of the bird.
Answer:
Mechanically - By the action of a force.
Electrically - By an electrical current.
By radiation - By Light waves or Sound waves.
By heating - By conduction, convection or radiation.
Explanation:
Answer:
A. metabolism
Explanation:
Metabolism is the bodily process used to convert food into energy.
To survive, the body must use energy. Energy is important to perform daily tasks as big as moving and as small as undergoing mitosis. All of this energy comes from the food we eat.
Metabolism is a complex process that works to break down the calories within food and convert them into energy we can use.
