Bile is a substance secreted to help digest fats. Bile is stored in the:

Which element in the protein hemoglobin, found in red blood cells, is responsible for binding oxygen?

When a blood vessel is injured, which of the following is responsible for clotting?

If CaCl2 is mixed with Na2SO4 in aqueous solution, which of the following is a possible product?

The Earth is about 4.5 billion years old. About how many years ago did life first appear?

The sun’s energy reaches the Earth’s surface primarily in the form of:

Which type of rock would likely be found at the bottom of a river bed?

Which of the following statements about the Earth is true?

If an unbalanced force acts on an object, then the object will begin to accelerate according to:

The potential energy of an object with a mass of 5kg that is placed 20 meters above the surface of the earth is most nearly:

In meiosis, one parent cell becomes how many daughter cells?

One of the reasons bacteria can be so deadly is because they multiply very quickly. E. coli has a doubling time of around 15 minutes. This means that if 100 bacteria are left alone for 2 hours, they will multiply to become:

Organisms which help one another survive by providing a mutual benefit to each other are

In taxonomy, which classification comes after ‘family’?

All of the following are phenotypic traits except for:

The cell membrane is a structure composed primarily of:

Of the following layers of the atmosphere, which is the closest to the earth’s surface and contains the majority of clouds?

Which of the following body systems is most closely associated with the immune system?

One of the primary characteristics of a bacteria is its:

Which of the following planets has a perfectly circular orbit?

Sound waves will travel the fastest in a medium that is:

A calorie is actually a measure of energy, and is equivalent to how many Joules?

What is the molecular weight of the compound C2H5O?

Craig ran 2.5 miles on his afternoon run. How many feet did he run?

The earth’s surface is covered by approximately what percent water?

Blood that flows back from the body will enter the heart through the:

A nerve impulse is transmitted through your nervous system primarily by:

All magnets have two poles which can be used to predict the direction of their magnetic waves. These two poles are the:

Approximately how many bones exist in the human body?

The nucleus of an atom is composed of:

What is the second most abundant gas in the atmosphere?

As light passes through a substance, the incident angle changes, meaning the light’s entering angle is different from its existing angle. This is an example of:

If one tectonic plate slides under another, the process is known as:

Carbon dioxide can be consumed and converted into glucose by what type of organism?

Two separate weather fronts will have air that is of different:

Plants are autotrophs, meaning that they:

Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a:

Muscles in the human body require what energy compound to function?

If a bowling ball is pushed with 20 Newtons of force and has a mass of 4 kg, what is its initial acceleration?

When a human cell divides in mitosis, the two daughter cells will each have:

In an electromagnetic wave, as the frequency of the wave becomes greater, what becomes shorter?

Which of the following time periods is the longest?

Water has a heat capacity of 4.2 J/g*C. This means that to heat up 100 mL of water 1 degree Celsius, we need:

In the lily flower, the red color is dominant and the white color is recessive. This means that if you cross a homozygous red flower with a white one, the offspring will be:

Which of the following is a characteristic of the tundra ecological biome?

A train travels at 25 mph for 3 hours. How far did the train move?

A solution contains 0.1 molar hydrogen ions (H+). This means the solution is likely:

What is the pH of water?

Which of these would be a normal resting heart rate of an adult?

Which blood cells are responsible for delivering oxygen to the body?