A ___________ is made up of all the different populations of organisms within a given area.

Which of these are gymnosperms?

Which group of primates is found in Central and South America and possesses the following traits: prehensile tails and wide open, far apart nostrils?

Which group of invertebrates were the first to develop an ENDOSKELETON?

Vascular tissue consists of ______.

Crustaceans such as crabs belong to which group below?

Cycads, gingkos, and gnetophytes are examples of which major type of plant?

The oceanic zone that is the largest part of the biosphere and is where no photosynthesis occurs due to a lack of light reaching those ocean depths is called the _______________ zone.

Which type of mammal below has a placenta that the baby develops fully in before being born?

Paying property taxes to fund public education is an example of __________.