Mr. Turner’s 9th grade class is going to start a campaign to prevent pollution. Below are four activity ideas that have been suggested to the group. Which one should they choose? 1. Create a video showing families how to reduce their household water use.
2. Create a plan showing how the city can use water more efficiently.
3. Create a brochure that educates people about groundwater overuse.
4. Create a video showing factories how to use cooling ponds and towers.

The answer is 4. Create a video showing factories how to use cooling ponds and towers.

Explanation:

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands