Speciation And Extinction Question Preview (ID: 56401)
Speciation And Extinction.
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True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.
a) true
b) false
c)
d)
Species that are in danger of becoming extinct are called __________.
a) endangered
b) extinct
c) not lucky
d) in a jam
Which of these describes a species that has become extinct?
a) fewer members of the species are dying than being born
b) very few members of a species are alive
c) more members of the species are dying than being born
d) all members of a species have died
When members of a species breed, their offspring are able to produce offspring.
a) True
b) False
c)
d)
Members of a species can breed with other members of the same species.
a) True
b) False
c)
d)
Members of the same species always live in the same geographical location.
a) True
b) False
c)
d)
Which of these could cause a mass extinction?
a) a year-long drought
b) eutrophication of a pond (so many nutrients enter the pond that the plant growth takes over)
c) a week long blizzard
d) a major change in global climate
When a species failed to adapt or compete it is called
a) a shame
b) background extinction
c) speciation
d) mass extinction
Which scenario describes an example of extinction?
a) Water pollution kills off all the fish that live in a small pond.
b) The cutting down of a tree forces a bird to build a new nest in another tree.
c) Every individual in a species is killed by hunters or a lack of food.
d) A population of deer must move to a new forest when its original habitat is destroyed by fire.
Which are causes of speciation?
a) Isolation caused by mountains, rivers and man-made structures
b) preference for different foods
c) different mating behaviors
d) all of these
When two or more populations no longer successfully reproduce it is called...
a) species
b) speciation
c) order
d) a shame
What do we call a group of individuals that can reproduce successfully in nature?
a) species
b) speciation
c) order
d) mom and dad
When a population becomes divided by an event such as a new river forming, ____________ has occurred.
a) Differentiation
b) Adaptation
c) Isolation
d) Separation
____________ = development of new species when a population is reproductively isolation in some form.
a) Competitive
b) Isolation
c) Speciation
d) mutation
What happens when species produce too many offspring?
a) Species share the limited resources
b) Only those that are least fit can survive
c) Species eat less so that all can survive
d) Only those that are best fit can survive
The disappearance of a species refers to
a) Evolution
b) Migration
c) Extinction
d) Mutation
When has speciation occurred?
a) When populations no longer look the same
b) When populations are living in different environments
c) When populations no longer have the same frequency of alleles
d) When populations can no longer interbreed
A ______________ species is on its way to becoming endangered or extinct.
a) threatened
b) sleeping
c) cuddly
d) fossil
Humans are causing extiction in which ways?
a) By over hunting animals for food or products.
b) By polluting the environments of the world.
c) By destroying the natural habitat of species.
d) All of the above.
Which period are we currently in?
a) Quaternary
b) Jurassic
c) Holocene
d) Tertiary
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