What happens to enzymes when the temperature is at 0

The female sex cells of a flowering plant are contained in its a) pistil b) pollen c) zygotes d) seeds

Which land feature separates watersheds

Compute the number of chromosomes that the gametes of a cat (2n=38 chromosomes) will have.

Which of the following is not an example of energy transformations in an ecosystem? a. sunlight driving photosynthesis in plants b. herbivores feeding on plants c. predators feeding on herbivores d. none of the above

Determine whether the following disturbances will be followed by primary or secondary succession. In coastal areas, wind moves sand, blowing away or engulfing the soil, and eventually creating sand dunes: The introduction of livestock to an area

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.