1. Introduction to Biology

In the context of primary succession, what is the primary role of pioneer species?

How did Bernard Kettlewell determine whether certain moths survived longer than others during his studies on natural selection in peppered moths?

Which type of natural selection shifts a population toward one extreme phenotype?

If macroevolution occurs within a population, what is the most likely effect on reproduction between the original and newly evolved groups?

Both primary and secondary succession begin with pioneer species that —

How do a male peacock's feathers increase his fitness in terms of natural selection?

Which of the following is a logical example of a predator-prey relationship?

Which two ideas proposed by Jean-Baptiste Lamarck most significantly influenced Charles Darwin's theory of evolution?

Which of the following statements about adaptive radiation is correct?

The animals on the Galápagos Islands inspired whom to develop his theory of evolution by natural selection?

How many finch species are found in the Galapagos Islands as a result of natural selection?

Which adaptation most favors the survival of an organism in its environment?

Darwin was curious about the patterns in the distribution of living things, which is the study of:

Which of the following best distinguishes primary succession from secondary succession in ecological communities?

Which type of ecological change was primarily observed in the ecosystems affected by the 1988 fires in Yellowstone Park?