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Question:

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

A ATP

explanation

Muscles consume ATP in order to function, which is the primary energy molecule found in the body. ATP can be produced from many sources, but the most common one is ATP production from glucose (sugar).

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Which of the following is NOT a fruit?

Carrots

Fruits have seeds. Carrots do not have seeds and are considered a vegetable. Corn is scientifically a fruit since it is the seed of the corn plant.

Which of the following biological classifications is the largest and most inclusive?

Kingdom

The taxonomy ranks run from largest to smallest: Kingdom, Phylum, Class, Order, Family, Genus, Species. A useful mnemonic for remembering this is, ‘King Philip Came Over For Great Spaghetti.’

Which of the planets has the longest revolutionary period around the sun

Neptune

Neptune is farther away than the other planets and has the longest period of revolution (164.81 earth years).

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

The most dense

The speed of sound is directly proportional to the density of the material through which it travels, with the speed being faster in more dense materials. For example, the speed of sound in air is 343 m/s, but the speed of sound in water, a more dense substance, is 1,463 m/s.

The cell membrane is a structure composed primarily of:

Lipid

The cell membrane is a lipid bilayer, and is composed primarily of two layers of lipid molecules that are lying opposite to one another. The cell membrane does contain some protein, but not very much.

On a Celsius thermometer, how many degrees are there between the boiling point of water and the freezing point of water?

100 degrees

In Celsius, the boiling point of water is 100 degrees and the freezing point of water is 0 degrees.

In the field of genetics, an organism’s appearance is referred to as its ____.

Phenotype

An individual’s genes are segments of DNA that carry hereditary information, and are located on chromosomes. An allele is a variant form of a particular gene. An organism’s genotype is its inherited combination of alleles. An organism’s phenotype is the expression of the alleles, or its appearance.

The majority of Earth's air is composed of _____.

Nitrogen

Earth's air is approximately 80% nitrogen.

Two objects on Earth are dropped from the top of a building that is 70 meters high. Object A has a mass of 12 g and object B has a mass of 6 kg. Assuming there is no air resistance, which object will hit the ground first?

Both objects will hit the ground at the same time

Without air resistance, the only force acting on the two objects is the Earth’s gravitational field. Consequently, the acceleration of both object A and object B is independent of mass, and every second, both velocities will increase by 9.8 meters per second. Given that both objects are dropped from the same height, and they both travel at the same rate, they will both hit the ground at the same time.

Ascorbic acid is also known as

Vitamin C

Vitamin C is also known as ascorbic acid.

Which of the following cloud types occur at the lowest altitude

Stratus

Stratus clouds occur below 6,000 feet.

Newton’s First Law of Motion states that objects in motion remain in motion unless acted upon by an outside force, and objects at rest stay at rest unless acted upon by an outside force. This statement is also referred to as the law of ____.

Inertia

Newton’s First Law of Motion is also referred to as the law of inertia. Inertia is the tendency of an object to resist change in motion.

The product of force and distance is

Work

Force x Distance = Work

The law of conservation of energy can be restated as which of the following?

Energy cannot be created or destroyed, only changed.

The law of conservation of energy states that the total energy of an isolated system remains constant. Energy cannot be created or destroyed, but it can change from one form to another. For example, an object dropped from a rooftop will undergo a change from potential energy to kinetic energy and hit the floor with a force equal to the amount of work done on the object by gravity.