What kind of animal is the platypus (Ornithorhynchus anatinus)?
a) Mammal
b) Reptile
c) Amphibian
a) Mammal
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15
What percentage of animal species are invertebrates?
a) About 50%
b) About 95%
c) About 90%
b) About 95%
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15
What does 3 squared equal?
a) 6
b) 12
c) 9
c) 9
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thief
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15
What connects bones to other bones?
Select one:
a) cartilage
b) tendons
c) ligaments
c) ligaments
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15
Which of these is the main way that ocean tides are created?
a) The rotation of the Earth on its axis
b) The gravitational pull of the moon
c) The gravitational pull of the sun
b) The gravitational pull of the moon
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15
How many atoms are in a mole?
a) 6.022 x 10^23
b) 6.022 x 10^24
c) 6.022 x 10^25
a) 6.022 x 10^23
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15
What does a light-year measure?
a) Brightness
b) Time
c) Distance
c) Distance
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15
How many pairs of ribs does an adult human have?
a) 10
b) 12
c) 8
b) 12
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15
True or False? It is the fatherâs gene that decides whether the baby is a boy or a girl.
True
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15
What is the chemical symbol for the element mercury?
a) Hg
b) Mg
c) Me
a) Hg
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15
What is the scientific term for peeling skin?
a) Desquamation
b) Dermatitis
c) Exfoliation
a) Desquamation
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15
What does nephrology study?
a) The kidneys
b) The liver
c) The blood
a) The kidneys
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15
Which of these isn't an essential aminoacid?
a) Lysine
b) Thryptophan
c) Riboflavin