Fitness is defined as the relative ability of an individual (or population) to survive, reproduce, and pass on genes. True or False?

In the lizard Plestiodon skiltonianus, the males court females with more similar size and the females reject males that are highly divergent in size. The size difference of the male and female in copula (mating) constrains the ability to align the genitalia for intromission so the sexual organs don’t match. Which type of reproductive barrier is acting upon this species?

Once transcribed, pre-mRNA typically undergoes processing that includes:

Which of the following is a source of genetic variability?

How are organisms classified and why?

Which kingdom contains ONLY autotrophic organisms?

What molecule is an anticodon a part of?

Which term best describes a change in allelic frequencies due to an influx of new members into a population?

A man who has a sex-linked (X) recessive trait (such as red-green colorblindness or hemophilia) received this gene from which parent?

What domain do animals fit into?