fossils fuels are formed in the geological past from the remains of living organisms. Petroleum products, such as coal and natural gas are considered fossil fuels. why are these types of fuels considered NONrenewable

Are reproductive cells created by meiosis or mitosis?

Which of the following is an example of water transferring from the atmosphere to the cryosphere? A. Rain falls on the Earth's surface and seeps into the ground, forming a groundwater reservoir. B. An iceberg floats into warm waters and melts. C.

What must form during cytokinesis of a plant cell that doesn't form in an animal cell? a. cell wall b. chloroplasts c. DNA d. none of the above

What is the relationship between diversity and survival of a species? (choose all that apply) With increased diversity, there is increased survival rate With increased diversity, there is decreased survival rate With decreased diversity, there is

2. The ability of an organism to survive and reproduce in its environment is called "fitness." But, it one version (called the allele) of a trait (like fur color) enables an organism to survive and reproduce better than other organisms in that same

Why do molecules go back and forth across the cell membrane?

The relative location of four genes on a chromosome can be mapped from the following data on crossover frequencies Genes B and D Frequency of Crossover 5% Cand A 15% A and B 30% C and B 45% Cand D 50% Which of the following represents the relative

How can we use rocks to determine how an area used to look in the past?

What type of bonds connect the deoxyribose sugars to the phosphate group?

What are proteins made up of?