What type of gas exchange system do insects have?

• cutaneous respiration

• lungs

• gills

• tracheal system

Which stage of cellular respiration yields the most ATP?

• glycolysis

• Krebs cycle

• electron transport chain

• all of the above

What do we call the set of observable characteristics of an individual resulting from its genetic make-up?

• phenotype

• genotype

• alleles

• gametes

What is the fluid that circulates the heart, vessels, and body systems and is known as the "River of Life"?

• plasma

• water

• blood

• oxygen

This is the organ that covers the windpipe during food intake so that food is not accidentally inhaled

• endocrine glands

• epiglottis

• epinephrine

• ears

How many chambers does a human heart have?

• 2

• 3

• 4

• 5

These are blood vessels that surround alveoli to facilitate gas exchange between lungs and blood

• diaphragm

• nasal cavity

• trachea

• capillaries

Gas exchange in plants takes place here.

• lenticels

• stomata

• xylem

• phloem

This is the part of the brain that regulates breathing

• cerebellum

• cerebrum

• hypothalamus

• medulla oblongata

Which component of the blood helps in clotting whenever we have wounds?

• plasma

• platelets

• red blood cells

• white blood cells