A. Substrate
B. Active site
C. enzyme
D. Products
Answer:
when carbon dioxide level goes up.temp. goes down.and vice versa
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.
B. 2.883 million kilometer
Answer:
A
Explanation:
zygote is the merged gametes of different organisms
