Which of these are common to all mammals?

type of reproductive system, brain size, skin

digestive system, heart, lungs

digestive system, number of toes, blood

kidneys, liver, skeletal structure

In two or more complete sentences describe a long term effect of water erosion on humans, and discuss how this might be reduced or prevented.

Identify the mechanism discussed below.

Which should not be part of a science inquiry? bias analysis hypothesis testing

Based on the data in Figure 1, is Mixture C a homogeneous or heterogeneous mixture? Explain your answer

Why would happen if there was no condensation stage in the water cycle?

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.