If an individual has genotype Dd, what are they?

A. Heterozygous dominant
B. Homozygous recessive
C. Dominant recessive
D. Homozygous dominant

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.

26 a medida que cambia el clima, ¿qué tipo de reproducción más probablemente de a una especie mayores posibilidades de supervivencia?

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.