ASVAB General Science Practice Test 814808 Results

Your Results Global Average
Questions 5 5
Correct 0 3.63
Score 0% 73%

Review

1

The large intestine does which of the following?

82% Answer Correctly

breaks down starches

processes the physical waste produced by digestion

breaks down fats

breaks down proteins


Solution

The large intestine (colon) follows the small intestine and processes the physical waste produced by digestion, absorbing water and minerials that remain back into the body. Solid waste is then stored in the rectum while liquid waste is stored in the bladder.


2

The hottest of Earth's atmospheric layers is which of the following?

74% Answer Correctly

stratosphere

thermosphere

troposphere

mesosphere


Solution

Temperatures again increase with altitude in the thermosphere which is the hottest (4,530 °F / 2,500 °C) atmospheric layer due to direct exposure to the Sun's radiation. However, the gas in this layer is highly diluted so even though the atoms of gas may be very high in temperature, there are too few of them to effectively transfer much heat.


3

As a cold front moves into an area, the heavier cool air __________ the lighter warm air that it is replacing.

66% Answer Correctly

cancels out

pushes under

pushes above

mixes with


Solution

A cold front is a warm-cold air boundary with the colder air replacing the warmer. As a cold front moves into an area, the heavier cool air pushes under the lighter warm air that it is replacing. The warm air becomes cooler as it rises and, if the rising air is humid enough, the water vapor it contains will condense into clouds and precipitation may fall.


4

A dominant trait will be expressed when paired with:

75% Answer Correctly

a gene

a dominant trait

a chromosome

a recessive trait


Solution

The traits represented by genes are inherited independently of each other  (one from the male and one from the female gamete) and a trait can be dominant or recessive.  A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.


5

During digestion, where is digested food absorbed into the blood stream?

66% Answer Correctly

small intestine

large intestine

stomach

pancreas


Solution

The small intestine is where most digestion takes place. As food travels along the small intestine it gets broken down completely by enzymes secreted from the walls. These enzymes are produced in the small intestine as well as in the pancreas and liver. After the enzymes break down the food, the resulting substances are then absorbed into the blood via capillaries in the small intestine walls.