Which of these can be examined using science? (2 points) a) whether horses love humans more than elephants

b) whether horses are happier animals than elephants

d) whether elephants live longer in captivity than in the wild

c) whether elephants are easier to care for than horses

Abnormal softening of a gland is known as

In a vegetable garden 45 bean plants have been eaten by deer 5 are untouched what is the frequency of bean plants in the garden that have been eaten?

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.