Select the two systems that are most closely related to the situation or process described:Doing a push-up

a) Skeletal

b) Immune

c) Muscular

d) Digestive

How does the water cycle affect weather in california

Male Japanese quail became sexually aroused by a red light that was repeatedly associated with the presentation of a female quail. The sexual arousal triggered by the red light was a?

Which of these best describes Earth's crust? A - Inner layer consisting of two parts B-Middle layer, density increases with depth C-Top portion called asthenosphere, thickest layer D-Thinnest under the oceans and thickest under continents

How are pathogens spread by contaminated objects

True or false: most drugs are eliminated by the kidneys in urine although some are excreted in saliva, sweat, or exhalation. a. True b. False

Which is a renewable resource? A) coal B) sunshine C) gasoline D) natural gas

How are fitness and adaptation important to natural selection?

Where do the light-independent reactions of photosynthesis occur? A. Stroma B. Thylakoids C. Cell cytoplasm D. Intermembrane space

What causes pioneer grasses and weeds that have grown in an abandoned field to die?

What specific event triggers the uncovering of the myosin binding site on actin?