2017 Evolution And Natural Selection Review 2 Question Preview (ID: 37393)
Evolution Review 2.
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Which best describes the purpose of mixing gene pools?
a) increases the number of organisms
b) promotes genetic variation
c) reduces genetic variation
d) reduces the number of organisms
Which is true about fossils?
a) Fossils provide the evidence for the Law of Gravity.
b) Fossils provide the evidence for the Laws of Motion.
c) Fossils provide the evidence for the Theory of Evolution.
d) Fossils provide evidence for the first law of thermodynamics
How are fossils compared to one another for biological classification?
a) by their size
b) by their estimated life spans
c) by the geographic locations where they are found
d) by similarities and differences in their body structures
Which best demonstrates analogous structures in animals?
a) cat fur and dog fur
b) whale fins and human arms
c) bird wings and insect wings
d) gills in fish and lungs in mammals
A group of organisms belonging to a single species that live in the same area.
a) community
b) population
c) ecosystem
d) biosphere
The more closely related two species are,
a) the less similar their DNA sequence.
b) the closer they are to becoming extinct
c) the least likely they are to be found in the same fossil layer
d) the more similar their DNA sequence.
A population of deer live in a forest. Which factor below would NOT be considered a limiting factor?
a) The size of the forest.
b) The amount of water available in the forest.
c) The amount of food available in the forest.
d) The amount of offspring each deer have.
What do rabbits, plants, mushrooms and humans all have in common?
a) They are all types of biotic factors.
b) They can all move to find water.
c) They are all abiotic factors.
d) They are all types of parasites.
A tick attaches itself to a dog. The tick feeds off the dog while the dog is harmed. This represents which type of symbiosis?
a) mutualism
b) parasitism
c) commensalism
d) realism
Which of these characteristics best helps scientists classify organisms?
a) size
b) color
c) gender
d) structure
A natural process that changes the DNA sequence of an organism.
a) adaptation
b) mutualism
c) natural selection
d) mutation
How does genetic variation affect an organism’s ability to adapt to its environment?
a) increases it
b) decreases it
c) has no known effect in most organisms
d) allows for more movement between populations
A genetic change that helps an organism, such as a plant or animal, survive in its environment.
a) mutation
b) adaptation
c) competition
d) biodiversity
Two organisms have homologous structures. Which can most likely be concluded about the two organisms?
a) They are unrelated.
b) They are the same organism
c) They shared a common ancestor
d) They evolved in a similar environment.
A change in the heritable traits (phenotype) of biological populations over successive generations.
a) evolution
b) natural selection
c) a mutation
d) an adaptation
A bird cleans the teeth of an alligator. The bird gets a meal and the alligator gets its teeth cleaned. This is an example of which type of symbiosis?
a) realism
b) parasitism
c) commensalism
d) mutualism
Which concept below does not support the idea of a common ancestor?
a) DNA sequencing
b) Anagolous structures.
c) Homologous structures.
d) Vestigial structures.
Organisms who are evolutionarily closer are most likely found at which taxonomic level?
a) order
b) family
c) kingdom
d) species
Which below is not one of Darwin's four principles of natural selection?
a) over production
b) successful reproduction
c) genetic variation
d) continental drift
What do wind, temperature, soil and water all have in common?
a) They are all biotic factors.
b) They can all cause genetic variation.
c) They are all biometric factors.
d) They are all abiotic factors.
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