Select the correct answer.
why might two elements possess similar chemical properties?
a they belong to the same group of the periodic table.
b. they have the same physical state.
they have similar physical properties.
d. they belong to the same period of the periodic table.

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48

The importance of the mind as a part of the body is an example of: