Which of these would be useful in determining the species
diversity of a pond ecosystem?
A Counting the number of red wing blackbirds
B Sampling areas of the wetland and identifying all the plant and
animal species present
C Performing a DNA analysis of all the reptiles found in the
ecosystem
D Classifying the types of ecosystems that surround the pond

Calcinosis is the diagnostic term that means an abnormal buildup of calcium on the kneecap (patellar) surface. it is a term uses to describe a group of disorders in which calcium deposits form in the skin. it is also referred to the abnormal deposit of calcium phosphate.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Ijust took the test on edgenuity and the answer is "life would cease to exist". hope this !