ASVAB General Science Practice Test 261623 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.88
Score	0%	78%

Review

Gametes have how many pairs of chromosomes?

76% Answer Correctly

	46
	4
	2
	23

Solution

Reproductive (haploid) cells known as gametes have half as many (23) pairs of chromosomes as normal (diploid) cells. When the male gamete (sperm) combines with the female gamete (ovum) through meiosis to form a zygote, each gamete supplies half the chromosomes needed to form the normal diploid cells.

What is a major difference between the somatic and autonomic nervous systems?

82% Answer Correctly

	one controls voluntary activity, one controls involuntary activity
	each belongs to a different nervous system
	one controls thinking, the other controls feeling
	one is inherited, the other is learned

Solution

Both are part of the peripheral nervous system. The somatic nervous system sends sensory information to the central nervous system and controls voluntary actions while the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.

Most digestion takes place where?

65% Answer Correctly

	stomach
	small intestine
	large intestine
	mouth

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.

In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:

86% Answer Correctly

	primary consumers
	scavengers
	producers
	decomposers

Solution

Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.

The energy posessed by a thrown baseball is an example of what kind of energy?

79% Answer Correctly

	potential
	transitional
	kinetic
	gravitational

Solution

Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.