Asvab general science

Which of the following terms is used to describe an organism's tendency to maintain its ideal internal state relative to properties such as temperature and pH?

Homeostasis

The specialized bird feet shown in the illustration are a result of natural selection and are examples of:

Adaptions

Which measurement can be used to determine if earplugs are needed when working in a factory?

Decibels

The graph shows changes over time in a population of bacteria added to a test tube of growth medium. What activity characterizes the growth cycle during phase II?

Bacteria are diving regularly by binary fission.

What is the major force that changes peat to coal?

Pressure

Where are the reproductive organs located in angiosperms?

Flowers

What causes coastal tides?

Gravitational attraction of the moon and sun on earth

Which characteristic is present in most crustaceans?

Exoskeleton

Why does a compass needle point towards the north?

Earth’s electromagnetic field

What is the function of enzymes in the human body?

Speed up chemical reactions

What is the measuring unit for the pressure of a liquid?

Pounds per square inch

Which of the following experimental results demonstrates phototropism?

Stems of plants turned toward the dark area of a room will bend towards the window

What is phototropism

Phototropism is the natural process where plants grow or bend in response to a light source

What is the primary reason that seasons in the Northern Hemisphere are out of phase with seasons in the Southern Hemisphere?

Tilt of the earth on its axis

What gas is a primary by product of the photosynthetic process?

Oxygen

What are the names of the substances involved in a chemical reaction?

Reactants and product’s

Which occupation would most likely be involved in genome mapping?

Geneticist

Carbon-14 is an example of an:

Isotope

If both parents of a child are carriers of a recessive allele for a disorder, what is the probability of their child getting it?

25%

If a diver takes a ballon that is filled with 1 cubic foot of air to a depth of 66 feet, what will happen to the ballon as the driver ascends back to the surface?

The ballon will began to expand to its original volume

Which of the following is a TRUE statement regarding air pressure and temperature when moving from sea level to the highest mountain top?

Both air pressure and average temperature decrease.

The process of transferring heat energy by electromagnetic waves is called:

Radiation

In a balanced aquatic ecosystem which of the following would have the greatest population?

Plankton

Which of these is part of the structure of DNA?

Guanine

What is the correct order of the water cycle

1. Sunlight heats pond water

2. Evaporation occurs

3. Water vapor cools

4. Condensation occurs

5. Precipitation occurs

Solubility can be defined as:

Extent to which a substance dissolves in a solvent

Friction is a force that:

opposes motion between forces

What is an example of kinetic energy?

Pendulum swinging in a clock

Water droplets forming on the inside of a cold windshield is an example of:

Condensation

Which of the following will result in a chemical reaction?

Mixing salt and water

Which of the following is a renewable resource?

Water

The tympanic membranes are also known as the

Ear drums

Which of these is the best explanation of how a rock becomes smooth and rounded

It was in a stream for a long time

What is the symbol for a hydroxyl ion?

OH-

The chemical formula of a compound describes the elements the compounds contain and:

The ratio of the elements in the compound

To be classified as an organic substance, a substance must contain:

Carbon

When a lizard grows a tail to replace one that was lost, the process is called:

Regeneration

Which element has no neutrons in the nucleus of its atom?

Hydrogen

A human skin cell divides by:

Mitosis

An astronomical body that revolves around a larger body is called?

A satellite

If you place bean seeds between moist paper towels and watch the stem and leaves appear, you will see a demonstration of:

Germination

How many atoms are in a single molecule of water (H2O)?

Three

The filament in an electric light bulb is made from?

Tungsten

Choking is prevented by the:

Epiglottis covering the voice box

Which of the following is NOT a renewable source of energy?

Natural gas

In humans, regeneration is limited to:

Wounds

What terms describe a liquids resistance to flow?

Viscosity

What is high viscosity

Slow flow (like honey)

What is low viscosity

Fast flow (like water)

The atomic number of an atom is the same as:

The number of protons

On a Fahrenheit thermometer, the boiling point of water at sea level is:

212

The changing of any kind of matter from one form to another absorbs or releases:

Energy

What gas do most plants need to live?

Carbon dioxide

Marrow is a soft tissue found in:

Bone

Which system enables oxygen to reach an individual cell in the human body?

Circulatory system

What does AM in the AM radio stand for?

Amplitude Modulation

What does FM in FM radio stand for

Frequency Modulation

The best definition of Orogenesis is:

Mountain building

Which animal undergoes metamorphosis?

Butterfly

The process by which a solid becomes a gas is known as:

Sublimation

Which animal does NOT reproduce by spawning?

Horse

When your skin is cut and bleeding, what part of your blood works to clot the area and stop the bleeding?

Platelets

What is the main function of the body’s lymphatic system?

Remove cellular debris and harmful substances

Which animal in the food chain is warm blooded? Fly—>Frog—>Snake—>Hawk

Hawk

The seven levels of taxonomic classification from general to specific are:

kingdom,phylum,class,order,family,genus,species

King Phillip Came Over For Good Soup

Kinetic energy is the energy that:

Is possessed by a moving object

The temperature at which a substance’s solid and liquid states exist in equilibrium is it’s:

Melting point

Particles that orbit the nucleus of an atom are:

Electrons

Earth is somewhat shielded from harmful ultraviolet radiation by the:

Ozone layer

Climate is:

Patterns of weather over long periods of time

Which of the following is most responsible for oceanic tides?

The orbit of the Moon around the Earth

The fact that the earth is tilted as it revolves around the sun creates which phenomenon?

Seasonality

What is another name for the chemical NaCl?

Salt

The rate at which work is done is called:

Power

Which scale measures the acidity or alkalinity of a substance?

pH

According to their locations on the periodic table, Argon (Ar) and Neon (Ne) are:

Noble gases

Which branch of science deals with the study of earthquakes?

Seismology

Which of the following undergoes metamorphosis?

Toad

Which of the following is a type of contact force?

Friction

Which of the following is the primary force acting on a floating object?

Buoyancy

What are the two main gases that make up stars?

Hydrogen and helium

Which of the following is caused by pathogenic bacteria?

Tuberculosis