(( earth science ))

a caldera is a depression in a volcanic mountain. a caldera may form when

a.
the magma chamber cools, hardens, and widens

b.
mountain rocks melt into lava and flow downhill

c.
the mountain collapses into an emptied magma chamber

d.
wind and water erode the center of the mountain

The mitochondrion functions lipid storage protein synthesis photosynthesis dna replication atp synthesis

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.