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10 questions
Biological evolution is the process by which species (a) change over time.
These changes occur within the (b) of populations of organisms from generation to generation.
(c) is a process where individuals with certain genetic traits are more likely to (d) under a specific set of environmental conditions.
Which part of prehistoric sharks is most commonly found as fossils?
Fins
Teeth
Scales
Skeletons
In natural selection what individuals are most likely able to survive and reproduce under a specific set of environmental conditions
Smartest organisms
Strong physical characteristics
Genetic traits adaptable to the environment
Enzymes that help it to digest any toxins it encounters in the environment
Fossils are preserved remains or traces of (a) organisms
Fossils may be (b) skeletons, bones, teeth, shells, leaves and seeds.
In addition to analyzing fossils excavated from the earth, scientist have studied evidence of ancient life in (c) samples from glacial ice and on mountaintops.
They have studied organisms trapped in (d) , or fossilized tree resin.
Match the following
Ice core sample | ||||
Petrified logs | ||||
Amber-fossilized tree resin |
The idea that organisms change over time and are descended from a (a) is not a new one.
The first convincing explanation for evolution was put forward in 1858.
Naturalist (b) and Alfred Russel Wallace independently proposed the concept of (c) as a mechanism for (d) .
Charles Darwin published his book in 1859 called the (e) .
Which two Naturalist independently proposed "Natural Selection"
Watson and Crick
Darwin and Russell
Pasteur and Schleiden
What is the primary mechanism by which evolution occurs according to Darwin?
Genetic drift
Natural selection
Mutation
Gene flow
Which of the following is a key factor in the process of natural selection?
Random mating
Environmental pressures
Stable population size
Unlimited resources
What type of evidence is most commonly used to study the evolutionary history of organisms?
Fossil records
Current population data
Behavioral studies
Climate patterns
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