Identify the FALSE statement below: A.) the mantle gets hotter the closer to the core you are
B.) convection occurs within the mantle
C.) the material that makes up the mantle is liquid
D.) Earthquakes can occur in only one portion of the mantle

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

Which of the following graphs have the same wavelengths

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.