FREE PAX Science Questions and Answers

Question 1

The adrenal glands are part of the:

Accepted Answer

Endocrine system

Answer

Immune system

Answer

Emphatic system

Answer

Respiratory system

Question 2

Which of the following is exchanged between two or more atoms that undergo ionic bonding?

Accepted Answer

Valence electrons

Answer

Neutrons

Answer

Transitory electrons

Answer

Electrical charges

Question 3

Jessica goes to the gym locker room after completing her workout and finds a woman lying on the ground. After she checks the scene for safety, she checks for responsiveness, breathing, and bleeding. The woman does not appear to be conscious or breathing, and Jessica cannot feel her pulse. Jessica calls 911 and places the woman on her back. Jessica is not CPR-certified. What is the next step the 911 operator should direct Jessica to take?

Accepted Answer

Find and attach an automated external defibrillator (AED)

Answer

Immediately initiate chest compressions while calling for help

Answer

Conduct a blind swipe of the mouth to remove any possible foreign objects

Answer

Deliver a cycle of 100 chest compressions before checking for signs of life

Question 4

Which of the following is the most likely pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions (H+)?

Accepted Answer

9

Answer

2

Answer

6

Answer

7

Question 5

Suzanne is exploring contraception options. She is sexually active with her long-term partner but does not plan on having children for the foreseeable future, so she would prefer a long-lasting and low-maintenance method. She also would rather use a nonhormonal contraceptive. Which type of contraception is the most appropriate for her preferences?

Accepted Answer

Copper intrauterine device (IUD)

Answer

Female condom

Answer

Depo-Provera shot

Answer

Progestin implant

Question 6

What will happen to light waves as they hit a convex lens?

Accepted Answer

They will be refracted and converge.

Answer

They will be refracted and diverge.

Answer

They will be reflected and converge.

Answer

They will be reflected and diverge.

Question 7

Which of the following correctly describes the trait LI, if "L" represents tallness and "|" represents shortness?

Accepted Answer

Heterozygous genotype and tall phenotype

Answer

Heterozygous phenotype and tall genotype

Answer

Homozygous genotype and short phenotype

Answer

Homozygous phenotype and short genotype

Question 8

Which blood vessel carries oxygenated blood back to the heart?

Accepted Answer

Pulmonary vein

Answer

Pulmonary artery

Answer

Aorta

Answer

Superior vena cava

Question 9

What is the mass (in grams) of 1.0 mol oxygen gas?

Accepted Answer

32 g

Answer

12 g

Answer

16 g

Answer

28 g

Question 10

During which phase is the chromosome number reduced from diploid to haploid?

Accepted Answer

meiosis I

Answer

S phase

Answer

interphase

Answer

mitosis