Pros of using email messages is no one knows your number. By knowing your number then they have access to your area code and can eventually find out where you are located. A con of using email messages you cannot call someone and hear their voice.
How are the male and female reproductive systems similar and different?
They are the same in that most of the reproductive organs of both sexes develop from similar embryonic tissue, meaning they are homologous. Both systems have gonads (male have testes and female have ovaries) that produce gametes (testes produce sperm and ovaries produce egg or ovum) and sex organs.
B. Must have an animal label animals do not have the same systems and capacities that humans do this could be fatal if there is not an animal label on it.
