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

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.