Bacteria cells have no A) nuclei. B) cell membrane. C) reproductive means. D) method of locomotion.

Which carbohydrate is found in plant cell walls and is indigestible for mammals and other animals?

Which is most likely to occur soon after you eat a large carbohydrate-based meal? a. your pancreas produces insulin b. your liver breaks down glycogen c. you produce ketones d. you break down body fat stores e.

Differentiation continues to divide to produce more and more cells without limits.

You are walking up the stairs and your foot slips. You fall forward grazing your shin on the stair and now have a bruise. What muscle have you injured?

Interactions between organisms and their environment impact the organism's overall population. Zebra mussels are not native North America; they were brought here by ships travelling from Europe.

The tundra biome has extremely cold temperatures during much of the year and a hard sublayer of permanently frozen soil called permafrost. Which of the following adaptations would plants in the tundra most likely have? A.

When plants of a particular species are growing too close to each other, crowding may eventually lead to mortality, known as self-thinning. this type of mortality is density-dependent. oscillating. exponential. density-independent. random?

the plant can either have a dominant allele or a recessive allele what would be a reason that is not a hardy weinberg equilibrium

What does DNA not contain?

Why are elements and compounds classified as pure substances?