Which of the following best explains how ecological tourism, such as whale watching, is a biological resource that benefits the environment?

a.) it encourages education and awareness about marine mammals.
b.) the presence of boats keeps predators away from the animals.
c.) tourists bring food to give to the animals.
d.) visitors often remove trash and other debris from the water.

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled