Which of the following are functions of lipids? choose three correct answers
a. forming the exoskeleton of insects
b. forming waxy leaf covers
c. forming bones and cartilage
d. storing energy in fat cells
e. forming cell membranes
f. carrying genetic information

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

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.