In about 90% of cases, Huntington's disease is inherited. But in 10% of cases, there is no evidence that a parent has the disease. Why do you think this is the case?

Drip irrigation can reduce the amount of water used on a farm. True False

How many times is a witness typically questioned in a criminal trial? a. one b. two c. three d. four

If a scientist sets up an experiment and the results do not support his hypothesis, what should he conclude? He should give up on this research project. He may want to alter some aspects of your experiment and try it again.

Which is not an example of matter and energy cycling through living things? A. Grass giving off oxygen B. Grass growing C. A rock resting on the ground a D. Cows eating grass

The imaginary line that separates the body into superior and inferior regions is called

In which type of external bleeding is less likely to clot?

Which is a common characteristic of extrusive igneous rock? a. cools slowly c. contains small grains b. forms crystals d. contains large grains

What is the gel like substance in a plant and animal cell?

Which of the following best explains how much activities can directly contribute to landslides

Which best describes an organism niche