Carbon
Hydrogen
Nitrogen
Oxygen
Phosphorus
Emotional effects of steroid use seem to depend on the type of steroid used. The correct option among all the options that are given in the question is the last option or option "d". There are various type of drugs that affect the user in variety of emotional ways. Some drugs make people violent, while others take them to the dreamland.
A neuron transmits information in the form of electrochemical changes, otherwise known as nervous impulses, through neurotransmitters. Hope it helps!
Communities with many different species have a high index of diversity, this will enable the communities to withstand environmental changes better than communities with only a few species or with low index of diversity...
That's my answer :)))
