As trees go into dormancy, it's leaves change color.

What causes this change in color?

A.) the tree make extra chlorophyll

B.) the tree stops making chlorophyll

C.) the tree produces extra hormones

D.) the tree stops producing hormones

Where are the chemicals secreted by the endocrine glands released into?

What is the function of the mitochondria why do plants need both a chloroplasts and mitochondria?

Growth is the process of change that occurs during an organism's life to produce a more complex organism. True or false

Which properties of grains determine the texture of rocks? Check all that apply. 1. feel 2. pattern 3. color 4. shape 5. size Multiple answer.

What is your mass in kilograms if you weigh 120 pounds? (there are approximately 2.2 pounds in one kilogram) Solve.

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.