Which scientist conducted tests on extracts made of bacteria to show that the genetic material in bacteria is DNA?

a.

Martha Chase

b.

Oswald Avery

c.

Frederick Griffith

d.

Alfred Hershey

Mutations are rare and occur because of? -An error in DNA replication -natural event such as an earthquake -Migration of organisms to a new population

What happens to excess carbohydrates in animals? They are stored as fat. They are stored as protein. They are stored as starch. They are stored as sugar.

What kind of exercise is often used as therapy to rebuild muscle strength after an injury?

A wild legume with white flowers and long pods is crossed to one with purple flowers and short pods. The F1 offspring are allowed to self-fertilize, and the F2 generation has 301 long purple, 99 short purple, 612 long pink, 195 short pink, 295 long

Which is not true about matter in the biosphere? A) Matter is recycled in the biosphere. B) Biochemical cycles transform and reuse molecules. C) The total amount of matter decreases over time.

Nucleotide are composed of phosphate group, a sugar, and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide? A. the sugar B. the phosphate group C. the nitrogen group D.

What organ system detects stimuli, secretes chemical and electrical signals, and controls all other organs

Which tissue type allows for organ movement within the body

Explain the role of enzymes and how they affect the chemical reactions of living things

Many arthropods young do not look like adults and do not eat the same food as adults. how would this be an advantage in an environment where food is scarce