8th Grade Unit 5 - Genetics And Traits Question Preview (ID: 46543)


Unit 5 -. TEACHERS: click here for quick copy question ID numbers.

A _____________ is a physical structure or behavior that better allows a species to survive.
a) adaptation
b) evolution
c) natural selection
d) DNA

The process in which organisms of a species are most adapted to their environments have a better chance of surviving to reproduce is called
a) natural selection
b) adaptation
c) evolution
d) mimicry

A change in the DNA of an organism is called a
a) mutation
b) gene
c) chromosome
d) cellulitis

A group of similar organisms which can breed and produce fertile offspring is called a(n)
a) species
b) population
c) adaptation
d) fitness

______________ are sections of DNA, which make up tightly wound structures called ___________________.
a) genes; chromosomes
b) chromosomes; genes
c) genes; DNA
d) chromosomes; mutation

Every organism's DNA includes just __________ chemicals.
a) 4
b) 2
c) 3
d) 5

Members of the same species in the same location at the same time is called a
a) population
b) group
c) team
d) camouflage

The large toe pads of the large green anole is an example of a(n)
a) adaptation
b) mutation
c) characterization
d) toe fungus

_____________ traveled to the Galapagos islands during his voyage on the HMS Beagle and found several variations of finches with uniquely shaped beaks.
a) Darwin
b) Mendel
c) Einstein
d) Coach Stewart

The non-venomous Californian king snake bears a very similar appearance to the deadly coral snake. This is an example of
a) mimicry
b) camouflage
c) mutation
d) toxicity

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