Approximately what percent of all the photosynthesis on earth is carried out by algae?

Reproduction is an important life character- istic because all living things

Identify and describe one of the ecosystems In a southern African biome

Animals have tactile sensors located at different paths of their bodies. For example, cats have sensitivity in their __.

Feedback inhibition is important for the regulation of many metabolic pathways. Which of the statements are examples of feedback inhibition? The beginning of glycolysis is inhibited by high levels of ATP in the cell.

Which organism has a backbone? fish jellyfish grasshopper octopus

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)

Describe the differences between a chromosome and a DNA molecule.

What role does oxygen play in a plants life?

Which measures the mass of an object? A) a spring scale (in N) B) a height scale (in feet) C) a graduated cylinder (in mL) D) a triple beam balance (in grams)

In his study of pea plants, Gregor Mendel used which method to produce offspring? O cross-pollination, by using parents that had identical traits O cross-pollination, by using parents that had different traits O self-pollination, by using one parent