Which characteristic is associated with winter as compared to summer? Choose the correct answer.

noon sun lower in the sky

higher daytime temperatures

more daily hours of sunlight

longer days and shorter nights

What type of pollution does household garbage cause

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Collin would like to use the data a coworker has entered in a database. the problem is the coworker's database software is different from collin's. collin should