1) What type of variation has distinct categories? a) Continuous b) Environmental c) Genes d) Discontinuous  2) What shape is a DNA molecule? a) Helix b) Double helix c) Spherical 3) Inherited from our parents, what is the basic unit of genetic material a) Gene b) Allele c) Environmental characteristic d) Double helix 4) Which organelle controls the cell and contains the chromosomes? a) Cytoplasm b) Nucleus c) Cell membrane d) Ribosome 5) What is evolution? a) A random process that happens over a few years b) The reason animals become extinct c) Changes in inherited characteristics occurring slowly over time 6) Why are fossils used to prove evolution happen? a) Fossils are always created during any environmental conditions b) They are nice to look at c) They provide evidence of different species from a long time ago 7) Why do animals become extinct? a) When animals can't find food b) Predators, disease, hunting and climate change c) Animals can't fly 8) All dogs belong to the same a) Breed b) Species c) Variety 9) What can all organisms of the same species do? a) Reproduce to have fertilile offspring b) Produce lots of offspring

B2 Homework 3 Inheritance and evolution quiz

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