PLEASE HELP I ONLY HAVE 30 MINUETES LEFT A scientist is observing the action of a cell that produces a chemical signal (called a hormone). The hormone is a large protein molecule. The scientist notices the cell also has many mitochondria. When the cell releases the hormone, the mitochondria become active, producing a lot of energy. Which of the following is the most likely explanation for these observations?
A. The cell is moving the hormone out using diffusion, which requires energy in the form of ATP.

B. The cell is moving the hormone out using osmosis, which requires energy in the form of ATP.

C. The cell is moving the hormone out using active transport due to the size of the protein, which requires energy in the form of ATP.

D. The cell is moving the hormone out using passive transport due to the size of the protein, which requires energy in the form of ATP.

This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels.to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map.b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off

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.

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation