The molecular and structural similarities observed among these organisms is best explained by which of the following?

A.

genetic mutations

B.

binary fission

C.

natural selection

D. human impact

Look carefully at the model. Plants take in the increased ground water and use the water for photosynthesis. Plants also release water into the atmosphere as a by-product of cellular respiration.

The rate of chemical weathering increases with this what?

Which of these describes a method in studying plate movements? -Observing the absence of magnetic rocks in locations that do not match the poles -Match relief elements only on the western side of the Atlantic Ocean -Recording the spread of the

An ecosystem has many levels of organization. Which level will have the most individuals? A. A population B. A biological species C. An interbreeding group D. A community

What type of federal grants are made for broad areas such as health care?

What is an explanation of why producers are always found at the lowest trophic level?

Whats the diffrence between qualitative and qauntitative data

A child with a suspected airway obstruction is brought to the emergency room. he produces a harsh, strident sound on inspiration (stridor). where is the obstruction likely to be located, based on this information?

Roan cattle show codominance for the color of their hair. there are alleles for red hair and white hair. what would you expect a heteozygous roan bull to look like if the trait showed incomplete dominance instead?

Which natural polymer contains 3,000 or more glucose monomers? starch protein cellulose nucleic acid?