The physical interaction between the respiratory and the cardiovascular system takes place at which respiratory structure in a human? a, brochioles b. alveoli c. bronchi d, respiratory vessels e, gill filaments

Many countries around the world today are trying to use renewable resources in such a way that the resource will be able to meet the needs of their citizens long into the future.

Which of the following is the best example of potential energy? a ball sitting at the bottom of a hill a ball sitting at the top of a hill a ball rolling down a hill

What is the correct order light must go through to be analyzed by the visual system?

The diagram shows a certain type of fungus growing on food. Which best describes what type of fungus this is?

Why does water sink in polar regions? A. Evaporation due to strong wind creates gyres. B. Water gets colder and saltier there, increasing its density. C. Southern Oscillation currents force water down as they strike land. D.

Which best explains how the body maintains homeostais? A. All systems work together to match the external environment B. All systems work together to stabilize the body C. Each system works interdependently to stabilize the body D.

It is an effect that drug use can have on society? A. Drug use increases pollution. B. Drug use leads to an increase in criminal activity. C. Drug use increases the spread of disease. D. All of the above

Which of the following affects the speed of light waves in a material? Angle at which the ray strikes the medium Color of the material Density of the material Temperature of the light wave

What does the nosepiece do on a microscope

What does a scale measure