The united states arctic national wildlife refuge is a large portion of alaska that is protected from construction, which would affect the land and resources that are available to living things.

choose the term that is used to describe all the species that live in the arctic national wildlife refuge.
a. population
b. community
c. ecosystem
d. species

Diego conducted an experiment to find out what kind of ball bounces the highest when dropped from a five-foot platform. he used a golf ball, a tennis ball, and a soccer ball. he dropped each ball from the balcony once. diego recorded his observations after each drop. what can diego do to best improve the reliability of his results? a) drop each ball from the platform three more times b) record his observations in more than one unit c) write at least two scientific questions after the experiment is complete d) share his results with other people who have done similar experiments you for the !

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

Use the numbers to place the companies in order of greatest comparative advantage to least comparative advantage in producing large tubes of toothpaste.