The green pigment in plants that is capable of absorbing the sun's energy is a) Porphyrin b) Beta carotene c) Chlorophyll

What does nephrology study? a) The kidneys b) The liver c) The blood

Which of the following will increase in concentration in muscle cells during strenuous muscular activity? a) lactic acid b) carbon monoxide c) glucose

What percentage of animal species are invertebrates? a) About 50% b) About 95% c) About 90%

What connects bones to other bones? Select one: a) cartilage b) tendons c) ligaments

What does 3 squared equal? a) 6 b) 12 c) 9

The Austrian monk Gregor Mendel's observations of what organism formed the basis for the science of genetics? a) Pea plants b) Mice c) Fruit flies

What is the chemical symbol for the element mercury? a) Hg b) Mg c) Me

What does a light-year measure? a) Brightness b) Time c) Distance

How many pairs of ribs does an adult human have? a) 10 b) 12 c) 8

What set of terms correctly represents an increasing order of complexity and size in living things? a) atom, molecule, organelle, organism, cell b) molecule, cell, tissue, organ, organism c) organelle, tissue, cell, organ, individual

Which of these isn't an essential aminoacid? a) Lysine b) Thryptophan c) Riboflavin

True or False? It is the father’s gene that decides whether the baby is a boy or a girl.