Answer:
they contain hymoglobin
Explanation:
the red pigment in blood cells
Answer:
i think its Meter and ounce but im not 100% sure
Explanation:
Answer:
When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.
Answer: Image D has the most direct sunlight
Explanation:
Since direct sunlight is supposed to be intense, it can't be B or C. Sunlight is most intense in summe, so winter and fall are out. Now we have A and D left. The sun is illustrated in image D and the area the sun covers is larger than image A's, so image D has the most direct sunlight.
Answer:
to maintain internal balance
Explanation: