Introduced species can threaten biodiversity because they

a. cause desertification

b. cause biological magnification

c. crowd out native species

d. reduce the amount of fertile land

The term fish describes a monophyletic group of animals.

what is meant by a mutation and explain the effects a mutation could have in a population of organisms.

You are beginning cpr on an adult. you have determined that the victim is unresponsive and is not breathing. what is your next step?

What is the most effective way to identify the speaker's purpose? A. by listening to the third line of each speaker's speech B. by evaluating each speaker's questions and responses C. by asking a teacher or peer to identify the purpose for you D.

When new cells are formed through the process of mitosis, the number of chromosomes in the new cells A) is half of that of the parent cell. B) decreases every time the cell divides. C) increases every time the cell divides.

If an individual inherits two of the same alleles, either both recessive or both dominant for a particular trait, the inherited genotype is what

What aspects of abundance do population density and population size measure, respectively?

What's an example of a multicellular producer

Are microorganisms alive and do microorganisms affect humans

Which statement best describes the process of chemiosmosis and the direct result of its occurrence? A. The choices are Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma.