Estuaries are characterized by _[blank]_.

the presence of fresh water and salt water

fast-moving water

coral reefs

chemosynthetic bacteria

Which of the following is true of DNA? Question 2 options: There are six nitrogenous bases involved. Cytosine can pair with guanine and adenine. There are four nitrogenous bases involved. Adenine always pairs with guanine.

What if water kept entering a cell and no water left the cell

The gene frequency for a dominant allele is 0.68 and the recessive allele is 0.39. What percent of the population has a homozygous recessive genotype?

What type of virus uses RNA, and not DNA, as its genetic material? A. Retroviruses. B. Parvoviruses. C. Adenoviruses. D. Bacteriophages

What three types of evidence allows us to determine whether organisms shared a common ancestor?

A relationship where one organism lives in or on another organism for the purpose of getting energy

Describe how convection currents work in the mantle

We are all born as naturalists eager to explore the world through our senses. True Fals

What materials are part of the the three most important cycle in the ecosystem

4.) The chromosomes in the karyotype also show some light and dark bands. What do you think these "regions of light and dark bands are?