1. Introduction to Biology

Which of the following organisms has a backbone?

Based on cladistics, which eukaryotic kingdom is considered polyphyletic and, therefore, unacceptable in modern classification systems?

What is a dichotomous key used for in biological taxonomy?

Which set contains only kingdoms that include autotrophs?

Why is it important to have a standardized system for organizing living species in taxonomy?

Which topic is most likely to be studied by a botanist?

Which of the following periods belongs to the Paleozoic Era and not the Cenozoic Era?

Which of the following phyla always has a complete gut?

Which of the following are the most familiar bryophytes?

Which method is used to place fossils in layers of rock according to the order in which organisms evolved?

Which characteristic is most widely used in classifying intertidal communities?

Which of the following groups is most closely related to mammals?

In a cladogram, the diagonal arrow typically indicates that we are moving _________ in time.

When using a dichotomous key in taxonomy, what is the first step you should always begin with?

In the six-kingdom classification system, which kingdom includes organisms that are multicellular, lack cell walls, and are heterotrophic by ingestion?