Answer:
Oxygen
Explanation:
-How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.
-The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.
Answer:
adaptations; anything ( food storage, movement, thermoregulation)
Explanation:
Characteristics that animals inherit to help them survive in their environment are called adaptations.
Along with water conservation, animals also have unique characteristics for food storage, movement, etc; (anything that is a regulatory thing seems to fit here).
A. Transfer RNA... acts like a delivery truck, delivers amino acids to the ribosome for protein synthesis.
A. Predator
It would be easier to answer this question with the photo but I would have to assume it’s A considering owls are usually the predators.
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.