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What process provides the genetic variability upon which natural selection acts during evolution?

What was the source of evidence that Darwin collected or observed aboard the H.M.S. Beagle?

The process by which individuals better adapted for their way of life in their new environment preferentially survive to leave more offspring with their traits to future generations is termed:

What is the most important characteristic identifying early hominids?

New World howler monkeys, African gorillas, langurs and colobus monkeys are all herbivores and eat vegetation such as leaves. In order to extract energy from fiber-rich plant material they:

Beneficial mutations in Escherichia coli can clearly identified as to their location on the genome. The rapid spread of a mutation throughout a population of E. coli indicates:

The key environmental change that allowed complex multicellular plants and animals to evolve quickly was:

What was the importance of Thomas Malthus’s ideas on population and resource increases to Charles Darwin?

One source of genetic variation is produced by:

Our earliest hominin ancestor lived __________ years ago.