Friction in machines is commonly reduced by using

1. All of the following would result in a change in population size except A. emigration of individuals out of the population range. B. equal birth and death rates. C. immigration of individuals into the population range. D.

What does analysis of DNA sequences tell us? Group of answer choices The last common ancestor of chimpanzees and humans were gorillas. Humans left Asia and went to Africa.

Which of the following questions can be answered scientifically? A. Should we just let the river flow where it wants? B. What can be done to stop erosion? C. Is erosion control worth the financial costs? D. Can planting cover crops reduce erosion?

2). What do plants do with the sugars they produce in photosynthesis. Describe at least two different processes and two different molecules that are made from sugars. Include a brief statement about what these molecules are used for in your response.

Practitioners that have specialized training in the musculoskeletal system are called

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.