Which can be an indicator of ecosystem health?
a. climax communities
b. ecosystem decline
c. biodiversity
d. endemic

Which type of neuroglia is found outside of the brain?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems