Answer:
B. Shortens
Explanation:
Myofibrils are components of the animal skeletal muscles that are made up of sacromeres. They perform the muscular contraction and relaxation via the sliding filament model.
To produce motion, A cross-bridge forms between actin and the myosin heads triggering shortening of the sacromere. This shortening of the sacromere results in the contraction of the muscle fibers, which the net effect can be seen to be a shortening of the fibers
Answer:
Drastic Change
Explanation:
If a Keystone species was removed from its environment, the area would drastically change, due to the fact that the environment is largely dependant on that species, so removing it from the system would change the way the animals interact with the Environment.
Answer:
The top of the food chain consumes the least amount of energy because producers that are eaten by the first consumers in a food chain only receive about 10% of the energy that the autotrophs have. As you go up the food chain, 90% of the energy that the prey contains is not consumed. This is why the top consumer receives the least amount of energy from autotrophs.
Explanation: