Which best describes a tetrad?

O A. A diploid cell

O B. Four chromatids

O C. Two gametes

O D. A haploid cell

When animals share many classification designations, the animals have a high degree of relatedness. which species are the most closely related according to the dichotomous key shown above?

What is the role of genes in evolution?

Which of the bonding examples below is NOT possible? (A) a DNA adenine to a DNA thymine (B) a DNA adenine to an RNA thymine (C) a DNA guanine to an RNA cytosine (D) a DNA adenine to an RNA uracil (E) a DNA guanine to a DNA cytosine

Distinguish between a tenant farmer and a sharecropper. whose exposure to risk is greater and why

Having malformed hands with shortened fingers is a dominant trait controlled by a single gene; people who are homozygous for the recessive allele have normal hands and fingers.

Describe the range of variation in the nervous systems of invertebrates

How does volcanic ash form

What is one effect of immigration on a population living in an ecosystem? A) the competition for resources will increase. B) more animals will leave the ecosystem. C) biodiversity will decrease. D) the population will decrease.

A glucose molecule is the A. smallest type of protein. B. monomer of starch and cellulose C. largest of the carbohydrate polymers D. fundamental unit of genetic material

Which series correctly lists the eight taxonomic levels in order, from the broadest group to the most specific group? A. species, genus, family, order, class, phylum, kingdom, domain B. domain, kingdom, phylum, class, order, family, genus, species C.