1. What is one characteristic that all living things and only living things have in common? 2.How did both the Redi and Pasteur experiments prove there was no such thing as a spontaneous generation?
3.Why do living things need water, food, and space to live?
4.The paws of the arctic fox are covered in thick fur. How does this help the fox maintain homeostasis?

this is true is that what u needed

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

the answer is :

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.