HELP I know for sure its not C (someone already had asked this question and ALOT of people downvoted it so :/)
In the electron transport chain, ATP synthase is responsible for

producing a chemiosmotic gradient inside the matrix.
capturing oxygen and connecting it with free hydrogen ions
adding a phosphate group to ADP.
pumping hydrogen ions against concentration gradient.

Is it considered muscle s ennervation if sympathetic fibers innervate the vessels within the muscle?

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.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.