Organisms need energy to conduct essential life activities. Basically, energy is essential to every organisms because it is their source of power to get food and to reproduce. Without it, organisms would not function properly and will soon die.
Answer:
The change in environment
Explanation:
Because they need to adapt to live
Structure L and I are the superior and inferior vena cava. They bring de-oxygenated blood from the body into the right atria.
D) orbit the nucleus like the planets orbit the sun.
this idea was first proposed in the rutherford model:)
