Q: What system of organs delivers blood to all cells of the body? Read this paragraph and choose the correct option from the provided answers: The cardiovascular system is the system of organs that delivers blood to all the cells of the body. It's like the body's lifeline. Without the cardiovascular system circulating your blood, you couldn't survive. Choices: - gastrointestinal - respiratory - integumentary - cardiovascular A:
cardiovascular

Q: What is the measurement for the amount of water vapor in the air? Read this paragraph and choose the correct option from the provided answers: A: Humidity is a measure of the amount of water vapor in the air. When humidity is high, sweat evaporates more slowly because there is already a lot of water vapor in the air. The slower evaporation rate reduces the potential for evaporative cooling. Choices: - haze - ambient - saturation - humidity A:
humidity

Q: What produces almost one-half of the earth's oxygen through photosynthesis? Read this paragraph and choose the correct option from the provided answers: Humans could not live on Earth if it were not for protists. Why? Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live. All protists make up a huge part of the food chain. Choices: - prokaryotes - algae - arthropods - protists A:
protists

Q: What is the measure of the change in the velocity of a moving object called? Read this paragraph and choose the correct option from the provided answers: A car's gas pedal, like the one in Figure below , is sometimes called the accelerator. That's because it controls the acceleration of the car. Pressing down on the gas pedal gives the car more gas and causes the car to speed up. Letting up on the gas pedal gives the car less gas and causes the car to slow down. Whenever an object speeds up, slows down, or changes direction, it accelerates. Acceleration is a measure of the change in velocity of a moving object. Acceleration occurs whenever an object is acted upon by an unbalanced force. Choices: - transmission - compression - pressurization - acceleration A:
acceleration