The answer to the question is B - The lungs exhale carbon dioxide, which is a waste gas and needs to be removed from the body.
Answer:
cell cycle (become two cells) or not grow
Explanation:
Answer:
Both whales and hippos have almost no hair on their bodies. They do not have sweat glands.
Explanation:
Answer:
Charles Darwin
Explanation:
Natural selection, most famously proposed by Charles Darwin, states that when presented with an environmental challenge, some individuals in a species will develop adaptations to face these challenges. Successful individuals will be more likely to mate and their offspring will inherit these adaptive traits, and will continue to pass for generations.
In this sense, plants face the challenge of the cold. Those that adapt to the cold will survive and reproduce, those that can't adapt to the cold will die. Eventually, only plants that can tolerate the cold will survive.
