Veins carry blood to the heart while arteries carry blood away from the heart distributing it throughout the body.
You can absorb the nutrients from the environment without moving at all. since the earth is not a closed system. energy can enter from the sky aka light and be absorbed. <span />
Answer:
The correct answer is - punctuated equilibrium.
Explanation:
The phenomena represent punctuated equilibrium, according to which the new well-defined species appear suddenly and quickly. These species remain unchanged for a long time as they occur because of mutations in genes.
This phenomenon suggests that once it made in the fossil record the population becomes stable for a long time until they become extinct and have to adapt to the changes take place to survive.
Disposal of human waste
through birds dropping the seeds of excreting them
through the dropping of seeds from the plants which sometimes are carried by the wind