Q: What system of organs delivers blood to all cells of the body? Choices: - gastrointestinal - respiratory - integumentary - cardiovascular A:
cardiovascular

Q: What is the measurement for the amount of water vapor in the air? Choices: - haze - ambient - saturation - humidity A:
humidity

Q: What produces almost one-half of the earth's oxygen through photosynthesis? Choices: - prokaryotes - algae - arthropods - protists A:
protists

Q: What is the measure of the change in the velocity of a moving object called? Choices: - transmission - compression - pressurization - acceleration A:
acceleration