A. the amount of lean muscle in a body
<span>This is due to much of the energy that is consumed by lower trophic levels of the food chain/food web being used at that lower level. This energy is stored or used and, therefore, unavailable to the organisms higher up in the chain. As the chain lengthens, less energy is available, usually as a factor of 10 (1/10 of the energy taken in by the level below the consumer is available to the consumer's level, for example).</span>
Answer:
Fish have gills that allow them to “breathe” oxygen in the water. Water enters the mouth, passes over the gills, and exits the body through a special opening. Gills absorb oxygen from the water as it passes over them
Explanation:
please mark brainliest
Answer:
Clubmosses
Explanation:
I don't really have an explanation