a scientist finds no evidence that any of the species in a particular community are competing and concludes development of the community. Could this conclusion be valid? Write a paragraph to explain your answer.

What do you like and dislike about today?

What happens in the stomach? A. Salivary amylase breaks down the food. B. Waste material is expelled from the body. C. Water and nutrients are absorbed. D. Large proteins are broken into smaller proteins.

What is the force all liquids have that act on particles which makes them form spherical drops?

In what order does the blood flow through the heart and body?

What evidence is there for evolution?

What ultimately controls the cell's production of proteins? A. DNA B. RNA C. protein D. allele

10. Briefly explain the secondary structure of a protein.

Which statement regarding fermentation is false? a. Fermentation produces lactate in heavily exercising muscle. b. At least one form of fermentation requires an enzyme with a thiamine pyrophosphate coenzyme. c.

there are four trophic levels in a food chain: Algae, salmon, bears and humans. if algae produce 6500 kj of energy, calculate the amount of energy that is passed on to each trophic level

Animal cells are permeable to water and urea but NOT to sucrose. The inside of a cell contains 1 M sucrose and 1 M urea and the outside 1 M sucrose and 2 M urea. After the system reaches equilibrium, what changes are observed?