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Science and technology Quiz 1
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How many square metres are there in a hectare? a) Ten thousand b) One hundred c) One thousand
a) Ten thousand
What does nephrology study? a) The kidneys b) The liver c) The blood
a) The kidneys
How many pairs of ribs does an adult human have? a) 10 b) 12 c) 8
b) 12
What kind of animal is the platypus (Ornithorhynchus anatinus)? a) Mammal b) Reptile c) Amphibian
a) Mammal
What percentage of animal species are invertebrates? a) About 50% b) About 95% c) About 90%
b) About 95%
What is the scientific term for peeling skin? a) Desquamation b) Dermatitis c) Exfoliation
a) Desquamation
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
Which is considered to be the computers short-term memory? a) REM b) ROM c) RAM
c) RAM
The green pigment in plants that is capable of absorbing the sun's energy is a) Porphyrin b) Beta carotene c) Chlorophyll
c) Chlorophyll
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
b) molecule, cell, tissue, organ, organism
What connects bones to other bones? Select one: a) cartilage b) tendons c) ligaments
c) ligaments
What is it called when light changes direction after leaving a lens? a) Reflection b) Refraction c) Diffraction
b) Refraction
True or False? It is the father’s gene that decides whether the baby is a boy or a girl.
True
Which of the following will increase in concentration in muscle cells during strenuous muscular activity? a) lactic acid b) carbon monoxide c) glucose
a) lactic acid
What does a light-year measure? a) Brightness b) Time c) Distance
c) Distance
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
Which of these isn't an essential aminoacid? a) Lysine b) Thryptophan c) Riboflavin
c) Riboflavin
The ‘Pascal’ is a unit measurement of what? a) Pressure b) Weight c) Temperature
a) Pressure
What is the chemical symbol for the element mercury? a) Hg b) Mg c) Me
a) Hg
Organic chemistry is the study of compounds that contain what element? a) Nitrogen b) Potassium c) Carbon
c) Carbon
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
a) Pea plants
What does 3 squared equal? a) 6 b) 12 c) 9
c) 9
The hardest substance available on earth is a) Diamond b) Platinum c) Rocks
a) Diamond
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