Answer: A. True
Explanation: Cell receptors are proteins that receive signals and trigger a signal cascade for the cell can respond. There's many types of receptors, depend of their location and their enzymatic activity, and each type can recognize certain signals. For example, tyrosine-kinase receptors can recognize growth factors, JAK associated receptors can recognize cytokines, etc. That specificity is given by the structure of the receptor and the structure of the signal.
The answer is: Milliliters (mL)
Answer:
To copy the genetic information in order for the cell to divide via mitosis or meiosis.
Because it's the most abundant gas in atmosphere , required by plants
