A microscope has a 20x ocular (eyepiece) and two objectives, low power is 10 x and the high power is 43x

Which condition will cause a reaction to occur? Check all that apply. Particles and molecules must collide. Collisions must be energetic enough to overcome the activation barrier. Collisions must be properly oriented for the relevant parts to react.

A cannonball made of iron has a volume of 1115 cm^3. If iron has a density of 7.86g/cm^3, what is the mass in grams of the cannonball? M=V x D

Which of the following is an example of a solution? Flour and water. Sand and water. Or salt and water.

Why do land plants need to conserve water

When vaccinating, a virus is actually injected into the body. True or False

What is the major role of the Nuclear Regulatory Commission?

A bacterium divides into two bacteria that are identical to, but smaller than, the original bacterium. Which characteristic of life does this best describe?

A localized group of organisms that belong to the same species is called a A) biosystem. B) community. C) population. D) ecosystem. E) family.

What is the scientific term for toads and frogs?

A pencil measures 18 cm long. How many millimeters long is the pencil?