Which of these best describes our current understanding about how species evolve over time? a) as organisms use certain traits more frequently, each organism evolves over time. b) populations of organisms evolve rapidly due to genetic changes brought about by random mating patterns. c) traits that result in a greater number of mutations occur more frequently, causing the population to evolve. d) populations evolve as natural selection results in a change in the frequency of alleles within the population over time.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

How do adaptation affect a species?

Complete the sentences by matching the names of trees to the appropriate blanks. to do this, drag the names on the left into the appropriate blanks in the sentences on the right. match the words in the left column to the appropriate blanks in the sentences on the right. terms may be used more than once. make certain you have filled every blank with a term before clicking submit. 1. deciduous trees lose their leaves seasonally and include trees such as maple and elm. 2. conifer leaves are generally thin and needle-like, while seeds are contained in cones. conifers include cedar and pine. 3. evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, elm, and pine. 4. hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as maple, , and cedar. elm returned you filled in 2 of 10 blanks incorrectly. mango trees are tropical broad leaf plants that maintain their leaves all year long. no credit lost. try again.