Darwin suggested that evolution occurred through a mechanism called natural selection. This involves descent with modification, and many textbooks liken this to "survival of the fittest". Hope this helps!
Answer:
takes substances captured from the external environment (air and carbon sources) and converts them into energy for building more cells and tissues and for carrying out life-sustaining activities. It also generates waste products and water.
Explanation:
Answer:
Light energy.
Explanation:
Light-dependent reactions require light energy to make two molecules needee for the next stage.
Answer:
mass and distance
Explanation:
As the two objects get further away, the distance between them increase and the strength of the gravitational force decreases. If the distances decreases, the force will increase. The bigger the object, the greater the force.