John was told that the tumor in his brain is malignant. this means that the tumor is

How do spines protect ocean stickleback fish?

Why is there so much variation within families

For two populations to evolve into two species that look different, what must happen? A.) Extinction B.) Competition C.) Continental Drift D.) Reproductive Isolation

If a river has a high gradient and a large sediment load composed of a large percentage of bed load, the direct result would be A) a meander B) a tributary C) an oxbow lake D) a braided stream

The arabian spiny mouse is a species of mouse. different mice in this species can have different traits. what allows these mice to have different traits from each other?

In one to three sentences, describe what happens during the regeneration stage of the Calvin cycle

A science student makes the following statement. Based on the data, we determined that plant growth is affected by the type of soil. What is the student doing? A. Making a prediction B. Forming a hypothesis C. Collecting data D. Drawing a conclusion

How many does carbohydioxide get into a leaf

Which of the following scenarios is most likely to occur if the climate continues on its current trajectory? a. Continental glaciers will form and expand outward from Canada and Norway. b.

What is a good slogan to tell the difference between weathering and erosion