The factor being changed by the person doing the experiment in a controlled study is called the

A boy opened two packets of milo drink. He left one in the refrigerator and another on the table. Three days later he got a bad smell from the packet left on the table. The packet which was kept in the refrigerator did not have a bad smell.

What type of tissue comprises the bulk of the myocardium

Was the cutlass a pony car or muscle car

DDT was banned from use as a pesticide in the United States because a. it caused the eggs of fish-eating birds to become thin and fragile. b. it was washed by rain into streams, rivers, lakes, and ponds. c.

Which is an example of a community? 1. All living things in a river 2. One Milkweed bug 3. All deer in a park 4. A male and female Milkweed bug on a stick

The "ball of the foot" normally carries about 40% of the weight of the body. What is the ball of the foot?

Why might a baby be born early if the mother smokes?

It is crucial that the process or mitosis is error free. this is because otherwise healthy cells can

How does blood move through the body?

The sinuses are a defect in bone growth and have no real purpose. a. True b. False