What is thought to have caused the extinction of the dinosaurs?

1, Ice ages

2. Increase in oxygen

3. Asteroid that hit Earth

4. Rising sea levels

What are 4 phrases describing osmosis

Identify the major source of energy for living organisms

What are two important things we use gymnosperms for?

Which term describes the process by which species adapt to their environment? A. natural selection B. artificial selection C. human selection D. environmental selection

In the graph below, which year most likely had the lowest rainfall? A. Year 1 B. Year 2 C. Year 3 D. Year 4 Its a gizmo on Rainfall and Bird Beaks

3. In the Phylum Porifera, the highest level of organization is arguably only at the cellular' levél. How have the cnidarians become more complex in terms of organization? What does this mean?

Explain the biological process that enables the roots epidermal cells to do this

Which term describes when individuals leave more offspring than other individuals?

Which of the following traits would be least useful in a phylogenetic analysis? A) A trait that is altered easily by small changes in temperature B) A trait that involves genetically inherited behaviors C.

A mutation is a mistake or change in the