A model is useful if it's what?

A. explains new observations.

B. predicts new observations.

C. matches new observations.

D. All of the above.

Developing hypothesis Some desert animals live for days without drinking water. How do you think these animals survive?

Can a pork roast that weighs 18 grams feed a family of four

Match the type of exercise with each example. walking drills are. burn (s) the most calories. sprinting drills are. can put a strain on the joints. during, one foot remains on the ground. can be a walking drill with a 20 second jog included in it.

Human skin pigmentation is controlled by multiple genes. What is necessary for the normal development of pigmentation? The genes must be arranged in sequence on the DNA strand. The genes must be arranged into an operon.

How are young plants supported? a) the pressure of water inside the cells pressing outwards on the cell membrane b) the pressure of water inside the cells pressing outwards on the cell walls c) the pressure of water passing from the roots through

Use the drop-down menus to identify the types of convergent boundaries. Label A Label B Label C

Which of the following is not part of the circulatory system? A: arteries B: stomach C: heart D: veins

Explain where the energy to cook food comes from when a gas stove burns natural gas, CH4, and oxygen, O2.

What causes the ocean waves that surface use for their sport? A. Sunlight heating water B. Wind blowing across water C. Destiny differences in water D. Salinity differences in water

Unlike other mammals, female monotremes do not have A. specialized teeth. B. nipples. C. mammary glands. D. hair.