1. Introduction to Biology

Which of the following best explains why the percentage of mosquitoes resistant to DDT increased rapidly after the pesticide was introduced?

What do transitional fossils best support?

An analogous structure found in two species is a structure that:

Which term best describes the process in which each new biological community modifies the environment, making it suitable for the next community to establish?

Which of the following would best demonstrate that a given population has evolved?

Which of the following best describes a key difference between primary and secondary succession?

Which of the following best describes how microevolution and migration can affect an ecosystem?

Experiments and observations indicate that natural selection acts:

Which of the following characteristics evolved independently in mammals and birds?

Birds are most closely related to which of the following groups of animals?

Which evolutionary adaptation enabled plants to grow tall and compete for sunlight?

Which of the following statements is accurate with regard to the Cambrian Explosion?

A relationship in which one species kills and consumes another species is known as:

How is developmental homology used as evidence of common ancestry?

How do adaptations help an organism reduce competition for food and other resources?