Which of the following is anther term for eruptions of gas on the suns surface a. nuclear fusion b. sunspots c. coronas d. solar flares

Many proteins other than histones are found associ - ated with chromosomes. what roles do these nonhis - tone proteins play?

Many scientific discoveries begin with direct observations. Which could be a direct observation? A. Ants communicate by airborne chemicals B. Birds navigate by using magnetic fields C. Butterflies eat nectar from flowers D.

List 4 specific adaptations in plants or animals. For example, you might say that porcupines have quills for protection.

Number of chromosomes in chimpanzee

A student pushes against a tree with a force of 10 newtons (N). The tree does not move. What is the amount of force exerted by the tree on the student? 1) 0 N 2) 5 N 3) 10 N 4) 20 N

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.