Answer:
b. enables cell to recognize and respond to external environment
Explanation:
There are two types of receptor present in/on the cell. The receptors that are present on the cell surface are called the cell surface receptor and the receptor which is present inside the cell is called an intracellular receptor.
The cell surface receptor is responsible for enabling the cell to recognize and respond to the external environment. The signal molecules that bind to the cell surface receptors are mostly hydrophilic and they generate an intracellular cascade in the cell which brings specific changes in the cell. So the right answer is b.
Answer:
Nuclear magnetic resonance is a method of physical observation in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus.
Explanation:
The function of the plasma membrane is to only allow certain items through, while blocking the rest.
Atlantic cod is a special type of marine fish from the family Gadidae. It is a commercially important fish because it is consumed by humans. The Atlantic cod lives in the cold waters and in the deep seas throughout North Atlantic. The Pacific cod on the other side lives in the northern Pacific.
Answer: Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.
Explanation: