How do tornadoes form? Explain.

What is dna and why is it important to forensic scientists?

The most important scientific tool

What evidence can support the theory of evolution?

The splitting of carbon dioxide to form oxygen gas and carbon compounds occurs during A) photosynthesis. B) respiration. C) both photosynthesis and respiration. D) neither photosynthesis nor respiration. E) photorespiration.

The function of the pollen tube is to select one: a. digest the sporophyte tissue as it elongates toward the female gametophyte. b. produce pollen. c. attract animals to the plant to spread the pollen. d. direct pollen to the megasporangium. e.

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.