ASVAB GENERAL SCIENCE - LIFE SCIENCE PRACTICE

PDF Download

ASVAB (GENERAL SCIENCE - LIFE SCIENCE PRACTICE

QUESTIONS) EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -25 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: (b) 23 chromosomes

A typical human gamete contains half the number of chromosomes as a normal cell, or 23.

Answer:

A typical human gamete contains __.(a) 2 chromosomes (b) 23 chromosomes (c) 46 chromosomes (d) 92 chromosomes

Question 2: (d) bacteria

Bacteria are considered a decomposer because they break down dead matter and release it back to the soil as minerals. Flies and vultures would be scavengers, and a tree would be an autotroph.

Answer:

Which of the following is a decomposer?(a) vulture (b) fly (c) oak tree (d) bacteria

Question 3: (c) strep throat

Answer:

Which of the following illnesses could be treated with an antibiotic?(a) influenza (b) anemia (c) strep throat (d) herpes

Question 4: (a) Prokaryotic cells do not have nuclei.

Prokaryotic cells, such as bacteria, do not have nuclei. Their genetic material is contained within main part of the cell body. Eukaryotic cells do contain nuclei where all genetic material is contained. Eukaryotic cells are plant, animal. fungi and protist cells.

Answer:

Which of the following best describes the difference between eukaryotic cells and prokaryotic cells?(a) Prokaryotic cells do not have nuclei.(b) Prokaryotic cells are only found in plants.(c) Eukaryotic cells are only found in plants (d) Eukaryotic cells do not have nuclei.

Question 5: (d) deer

A deer is an example of a primary consumer; that is, an animal that consumes only vegetation.

Answer:

Which of the following is an example of a primary consumer?(a) moss (b) mushroom (c) jackal (d) deer

Question 6: (c) The black rabbit has a recessive white-fur allele.

Answer:

Suppose that black ur in rabbits is a dominant trait and that white fur in rabbits is a recessive trait. A black rabbit and a white rabbit mate and produce a white kit ( that is, baby rabbit).Which of the following inferences is supported by this information?(a) The parent's next kit will be black.(b) The white rabbit has a recessive black-fur allele.(c) The black rabbit has a recessive white-fur allele.(d) The kit is an albino.

Question 7: (a) no oxygen is present during cellular respiration

Answer:

Cellular fermentation takes place when __.(a) no oxygen is present during cellular respiration (b) oxygen is present during cellular respiration (c) lactic acid is present during cellular respiration (d) yeast is present during cellular respiration

Question 8: (b) the medulla, or brain stem

Make a prediction. Regulation of the heart is an autonomic (involuntary) process. It occurs in the brain stem (medulla).

Answer:

Processing of signals from the heart and regulation of cardiac rhythm occurs in __.(a) the cerebrum (b) the medulla, or brain stem (c) the cerebellum (d) the spinal cord Question 9: (a) vena cava -> right atrium -> right ventricle -> pulmonary artery -> pulmonary vein -> left atrium -> left ventricle -> aorta To make a prediction on this question, think about what kind of blood flows into and out of the heart.

Answer:

Which of the following describes the proper pathway of blood through the heart?(a) vena cava -> right atrium -> right ventricle -> pulmonary artery -> pulmonary vein -> left atrium -> left ventricle -> aorta (b) vena cava -> right atrium -> right ventricle -> pulmonary vein -> pulmonary artery -> left atrium -> left ventricle -> aorta (c) vena cava -> right atrium -> left atrium -> pulmonary artery -> pulmonary vein -> left atrium -> left ventricle -> aorta (d) vena cava -> right atrium -> left atrium -> pulmonary vein -> pulmonary artery -> left atrium -> left ventricle -> aorta

Question 10: (d) right atrium

Answer:

Which of the following does not contain oxygen-rich blood?(a) aorta (b) left ventricle (c) pulmonary vein (d) right atrium

Question 11: (c) nucleus

Answer choice (c) is correct. The nucleus contains all genetic material. DNA replication takes place in the nucleus during interphase. Interphase is the longest phase of mitosis.

Answer:

In which organelle does DNA replication take place?(a) mitochondria (b) ribosome (c) nucleus (d) endoplasmic reticulum

Question 12: (b) red meat

A person with high cholesterol should limit their intake of saturated fat. The only choice here that is high in saturated fats is (b) red meat. The others are filled with healthier fats (mono- and polyunsaturated fats) that could possibly help lower high cholesterol.

Answer:

If a person has high cholesterol, which one of the following foods might his doctor suggest that he avoid?(a) olive oil (b) red meat (c) almonds (d) avocados

Question 13: (a) iron-deficiency

Answer:

A pregnant woman feels dizzy and has a headache. Which of the following would be the most likely diagnosis?(a) iron-deficiency (b) scurvy (c) cancer (d) diabetes

Question 14: (b) biosphere

The biosphere begins in the deep crust of the Earth and includes all areas where life can exist - land, water and air. An ecosystem and a biome are smaller areas. The stratosphere is higher than the lower atmosphere.

Answer:

Which of the following is the term for the zone that extends from the Earth's crust through the lower atmosphere and which encompasses all life on Earth?(a) biome (b) biosphere (c) ecosystem