The diagrams to the right represent stages in the embryonic development of four organisns. The similarities
in embryonic development shown in the diagram suggest
that these organisms(thats the diagram above)

(1.) are all members of the same species
(2.) all undergo external development
(3.) may have evolved from a common ancestor
(4.) have adaptations for the same environment as adults

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

Explain why ecosystem diversity results in species diversity in a healthy biosphere