Which best describes the ecosystems on Earth? A. Separate ecosystems can affect each other.
B. Ecosystems do not interact with each other.
C. There are very few types of ecosystems on Earth.
D. Earth has mostly rain forest ecosystems.
SUBME

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

What is the ecological role of food chains and food webs

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.