The answer to the question above is letter "B. metabolism". General meaning of the word is that it is a chemical process that occur within the living organism in order to maintain life. The metabolism of the body is divided into two categories, anabolism and catabolism.
A healthy ecosystem must contain:
Plants. A plant has nutrients and energy that make it possible for herbivores to eat.
Primary consumers. These consumers will feed off of the plants to maintain a stable environment. They will also provide food and energy to secondary consumers
Secondary consumers. They will maintain the the population of the primary consumers. Once they die, they provide food and habitat for decomposes and scavengers
Habitat. The ecosystem must contain shelter for the creatures in the forest.
Stable temperatures. This is for the creatures who require specific amounts of heat and cold to survive. For example snakes would thrive in a swamp, but would die in the mountains.
There are probably more attributes, but here's a healthy list :) Hope it helps!
Answer:
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.
The answer is A. And if you are from connections Academy 7th grade science it's
1. A
2. C
3. B
4. D
5. A
<span>Photochemical smog, created by the chemical reaction between sunlight, nitrogen oxides and volatile organic compounds is (e) generally worse during the winter months in part because of the increase in energy used to heat homes and other buildings.</span>