You have learned that both biotic and abiotic factors affect ecosystems. give some examples of each, and explain how biotic and abiotic factors could have affected the tortoises that darwin observed on the galápagos islands.

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d. a round-trip ride to school and back

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.

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions