The theory of argues that humans and non-humans produce and change one another through interactions with each other.

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.

Why are current extinctions of concern to enviromentalists?