A control is a experimental variable that is kept constant or unchanged during an experiment. During a controlled experiment, the controlled variables are held constant to minimize or stabilize their effects on the subject, its unchanging state allows the relationship between the other variables being tested to be better understood.
Answer:
Examples of type I membrane proteins include the histocompatibility antigens, glycophorin and membrane
immunoglobulin. Examples of type II
membrane proteins include the transferrin receptor, the asialoglycoprotein receptor, and many ecto-enzymes and glycosyl transferases.
Answer:
a) Acetylcholine is degraded by acetylcholinesterase.
Explanation:
After it binds for its receptor on the plasma membrane of the postsynaptic cell, acetylcholine must be removed in order to prevent repeated stimulation. Acetylcholinesterase is enzyme for the inactivation of acetylcholine, present at all cholinergic synapses. This enzyme hydrolyses acetylcholine and breaks it to the acetate and choline. Choline can be reused for the synthesis of the new acetylcholine molecule so it is taken back into the presynaptic cell.
Answer:
flower color, flower position, seed color, seed shape, seed pod shape, pod color, leaf pattern, and stem length.
Explanation:
Some common inherited characteristics
Answer: Mercury
Explanation:Mercury—the smallest planet in our solar system and closest to the Sun—is only slightly larger than Earth's Moon.