The tendency of the body to maintain stable internal conditions is called:

• metastasis

• homeostasis

• responsiveness

• adaptation

• evolution

Tags

NGSS.HS-LS1-3

Each of the graphs below reflects changes in some hypothetical body parameter. Which graph best represents a dynamic equilibrium?

• straight line

• wavy line

• positive line

• negative line

Tags

NGSS.HS-LS1-3

What is the most important reason that an ultrasound is used to evaluate development of the fetus rather than a CT scan?

• Ultrasounds are cheaper

• x-rays are more likely to harm the fetus than sound waves

• CT scans are unable to penetrate the amniotic fluid

• ultrasounds are portable

Which of the following techniques is best to evaluate breath sounds in an asthmatic patient?

• palpation

• auscultation

• inspection

• percussion

Which of the following lists parts of the body's organization from most complex to simplest?

• whole body, organelle, cell, tissue, organ, organ system, atom

• whole body, organ system, organ, cell, tissue, organelle, atom

• whole body, organ system, organelle, tissue, cell, organ, atom

• whole body, organ system, organ, tissue, cell, organelle, atom

• whole body, organ, organ system, tissue, cell, organelle, atom

Tags

NGSS.HS-LS1-2

The only polysaccharide synthesized in the human body is:

• cellulose

• starch

• cholesterol

• glycogen

• prostaglandin

Which of the following is most important in determining the chemical properties of an element?

• number of neutrons

• presence of hydrogen bonds

• van der Waals forces

• number of valence electrons

• contents of the nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element is part of the backbone of protein molecules but is not part of the basic structure of either carbohydrates or lipids?

• carbon

• nitrogen

• oxygen

• hydrogen

How do catalysts (enzymes) influence activation energy and reaction rates?

• up activation energy and up reaction rate

• up activation energy and down reaction rate

• down activation energy and down reaction rate

• down activation energy and up reaction rate

Tags

NGSS.HS-PS1-4

What are the amphiphilic molecules that make up most of the bilayer of the cell membrane?

• triglycerides

• sterols

• phospholipids

• saccharides

• eicosanoids