ASVAB General Science Practice Test 393947 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.71
Score	0%	54%

Review

Reproductive haploids are also known as:

62% Answer Correctly

	sperm
	gametes
	ovum
	diploids

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.

In the food chain, omnivores may be which of the following?

45% Answer Correctly

	primary or tertiary consumers
	primary or secondary consumers
	secondary or tertiary consumers
	secondary consumers or scavengers

Solution

Secondary or tertiary consumers may be omnivores.

What part of the nervous system is responsible for controlling involuntary actions like breathing, swallowing, and heartbeat?

63% Answer Correctly

	cerebrum
	spinal cord
	cerebellum
	medulla

Solution

Part of the brainstem, the medulla is the connection between the brain and the spinal cord. It controls involuntary actions like breathing, swallowing, and heartbeat.

Antigens are found on the outside of which blood cells?

55% Answer Correctly

	red
	platelets
	plasma
	white

Solution

Blood is categorized into four different types (A, B, AB, and O) based on the type of antigens found on the outside of the red blood cells. Additionally, each type can be negative or positive based on whether or not the cells have an antigen called the Rh factor.

The universal recipient blood type can recieve any other blood type. Which blood type is the universal recipient?

45% Answer Correctly

	AB-positive
	AB
	O-negative
	O

Solution

Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.