Describe the atp/adp cycle. why is atp useful as our basic energy source?

Which of the following are examples of biotic factors? Choose ALL that apply. bacteria grasses water fungus

During cellular division, one cell divides to become two cells. Then, the two cells divide to become four cells. The four cells divide to become eight cells, and so on and so forth.

The study of behavior and mental processes is central to: A. child development. B. psychology. C. how cells work in the brain. D. mental illness.

Down syndrome is an example of trisomy. How many chromosomes will each cell of an individual have in Down syndrome? 46 chromosomes 47 chromosomes 45 chromosomes

The carbon, water, and nitrogen cycles are important in keeping living organisms functioning properly. True or False?

Why do we need to cut our hair and finger nails?

Which is the most accurate statement about ferns? a) Ferns belong to the same phylum as moss. b) Ferns are nonvascular plants. c) Ferns developed after mosses appeared. d) Scientists have found several hundred species of ferns.

How are most decomposition reactions initiated

Which process is cause of variation in a species?

Which layer of soil is least likely to be penetrated by plant roots? a. O (organic matter) b. A (topsoil) c. B (subsoil) d. C (parent rock)