Not all do so your answer is false
They were studying the effects of acid rain on different aquatic organisms
Answer:
Grey Mice have a higher fitness because their phenotype allows them to blend in with their environment, thus helping them to avoid predators. This allows them to survive and reproduce better than the other mice.
The heart’s electrical system is responsible for making and conducting signals that trigger the heart to beat. These signals cause the heart’s muscle to contract. With each contraction, blood is pumped throughout the body. This happens 24/7 without us having to monitor it all the time so that our heart does not stop.
Answer:
1) the internal urethral sphincter (IUS), which consists of smooth muscle and is continuous with the detrusor muscle and under involuntary control, and 2) the external urethral sphincter (EUS), which is made up of striated muscle and is under voluntary control.
Explanation:
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