1. Introduction to Biology

How could a biologist distinguish an acoel flatworm from a free-living platyhelminth?

Vultures and blowflies are classified as which of the following?

According to the cladogram, which of the following organisms appeared before all the others?

Which of the following best describes a dichotomous key?

Based on the cladogram, which of the following traits are shared between ferns and pines?

Which of the following is a defining characteristic of mollusks in biological taxonomy?

Which of the following would you classify as something other than an animal?

Which of the following best explains why gymnosperms have only four extant divisions?

Which of the following clades contains the greatest number of animal species?

Which of the following best describes the body structure of crayfish?

The embryophytes are __________.

In the context of taxonomy, what is a monophyletic group?

The sister group to all other vascular plants is the:

In biological taxonomy, which term refers to a large category of classification that includes groups such as Animalia, Plantae, and Fungi?