Which type of joint allows the rounded end of one bone to fit into a ring of bone so the the bone can turn
a. plane
b. pivot
c. condyloid
d. saddle

Astudy was performed on 20 trees to test the effectiveness of a new fertilizer. the results of this specific study is brought into question. what would possibly improve the reliability of the results?

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen