What does a nucleotide consist of?

a polymer of nitrogenous bases

nitrogenous bases and sugar

sugar and phosphates

a nitrogenous base, a sugar, and a phosphate

What were the old models of the solar system? What factors influence the gravitational forces between objects? How does gravity form planets and stars and structure solar systems? How does gravity influence the motion of planets?

When a part of a thrombus breaks away from the wall of a blood vessel, it is referred to as?

Color of chickens is determined by interacting loci: aa or aa give white, aabb or aabb give colored, and aabb produces white. what are the phenotypic frequencies of the offspring from a cross between two fully heterozygous chickens

Explain: In dominant/recessive inheritance patterns, the dominant allele is always expressed when present. The recessive allele is only expressed when the dominant allele is not present.

Which group of organisms do scientists think is most closely related to the first life on earth? tubeworms

Why do scientist publish their work

In pea plants, the allele for purple flowers (p) is dominant to the allele for white flowers (p). in a cross between a purple-flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers.

1. The first choice on a dichotomous key is: "1A. Are wings covered by an exoskeleton? vs. 1B. Are wings not covered by an exoskeleton?" Which organism is separated from the others by this question?

b. Explaining A friend claims that pea plant grow faster than corn plants. Could you investigate this idea through scientific inquiry? Explain.

Why is a disease like osteoarthritis not considered an infectious disease?