Answer:
<u>Two eggs</u>
Explanation:
Fraternal twins originate from the fertilization of two eggs. Fraternal twins are also termed as dizygotic twins which means "two cells". Every two twins in a set of three are dizygotic or fraternal. The babies arising by this phenomenon are not identical and can be of different sexes. Even the sperm fertilizing the two eggs in this phenomenon are seperate. Fraternal twins even do not share the same placenta, each of the them makes their own placenta.
Answer:
through wires
Explanation:
Electrical energy passes through conductors but may also travel through space but select wires as it is a more common answer.
Answer:
One molecule of catalase can break 40 million molecules of hydrogen peroxide each second
Explanation:
This is referred to as: spontaneous recovery
Spontaneous recovery is a theory of learning and memory which involves unexpected and recurrence of a conditioned response after a period of reduced response or delay. Spontaneous recovery is associated with classical conditioning and operant conditioning. Extinction will happen quickly after a spontaneous recovery, if the conditioned and unconditioned stimulus is not connected.
Answer:
acetylcholinesterase breaks down Acetylcholine
Explanation:
enzyme acetylcholinesterase (AChE) breaks down Acetylcholine into it's inactive metabolites choline and acetate. This enzyme is highly efficient
