Of these, which is NOT a sexually transmitted disease?
a.
herpes
c.
syphilis
b.
chlamydia
d.
tuberculosis

An easy way to calculate the amount of energy available at each level is to what?

Amarine ecologist has constructed the conceptual model shown in the diagram. what predictions can be made from using this model? where the tertiary consumers get their energy how often primary producers are able to reproduce when bacteria and fungi initiate the process of decomposition whether other secondary consumers are present

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human