Identify and briefly explain the four premises of evolution by natural selection, as proposed by Charles Darwin. What will be an ideal response?


1. Individuals of a population exhibit variation in traits.
2. Overproduction of species progeny. More offspring produced than can survive.
3. Limits on population growth by limited resources.
4. Differential reproductive success: those individuals with traits that can take advantage of
resources will produce more offspring for the next generation

Biology & Microbiology

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The same basic internal organs (kidneys, stomach, heart, lungs) are found in frogs, birds, snakes, and rodents. This is primarily an example of _____

A) structural homology B) developmental homology C) genetic correlation D) inheritance of acquired characteristics

Biology & Microbiology

DNA has no sulfur, and proteins have no phosphorus

Indicate whether the statement is true or false

Biology & Microbiology

Which is the normal direction in which the nerve impulse flows? 

A. axon—soma—dendrite B. dendrite—soma—axon C. soma—dendrite—axon D. dendrite—synapse—axon

Biology & Microbiology

All the populations of all the different species interacting with one another in the same environment is called

A. predation. B. symbiosis. C. diversity. D. an ecosystem. E. a community.

Biology & Microbiology