Choice B is the correct answer, and if not B then D!
Answer:
B) mitochondria
Explanation:
Muscle cells require energy in very high amount because most of the time they are involved in mechanical work i.e. movement and for movement we require large amount of energy. Also, we know that mitochondria are the 'powerhouse of the cell' because they are involved in ATP production which serves as energy source in our body. They are able to produce ATPs with the help of ATPase pump which are located in inner mitochondrial membrane. So, cells found in the active muscles of animals must have large amount of mitochondria so as to perform their function efficiently.
The living parts of an ecosystem, called biotic factors, are all the organisms that live in the area. The nonliving parts, called abiotic factors, are the nonliving things in the area. All the living things together in an ecosystem form a community.
Answer:When glucose in the blood binds to glucose receptor, a signal cascade is initiated inside the pancreas that results in insulin being released into the bloodstream. The hormone then circulates in the blood and eventually binds to insulin receptors on other cells.
Explanation:
The primary greenhouse gases<span> in Earth's atmosphere are </span>water vapor<span>, </span>carbon dioxide<span>, </span>methane<span>, </span>nitrous oxide<span>, and ozone.So its water vapor, carbon dioxide, nitrous oxide, and methane </span>