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- 1. Drop Down
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.
geneticallygenessurvive and reproduceNatural selection - 2. Multiple Choice
Which part of prehistoric sharks is most commonly found as fossils?
Fins
Teeth
Scales
Skeletons
- 3. Multiple Choice
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
- 4. Drop Down
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.
prehistoricmineralized or petrifiedice coreamber - 5. Match
Match the following
Amber-fossilized tree resin
Ice core sample
Petrified logs
- 6. Drop Down
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) .
single common ancestornatural selectionbiological evolutionCharles DarwinOrigin of Species - 7. Multiple Choice
Which two Naturalist independently proposed "Natural Selection"
Watson and Crick
Darwin and Russell
Pasteur and Schleiden
- 8. Multiple Choice
What is the primary mechanism by which evolution occurs according to Darwin?
Genetic drift
Natural selection
Mutation
Gene flow
- 9. Multiple Choice
Which of the following is a key factor in the process of natural selection?
Random mating
Environmental pressures
Stable population size
Unlimited resources
- 10. Multiple Choice
What type of evidence is most commonly used to study the evolutionary history of organisms?
Fossil records
Current population data
Behavioral studies
Climate patterns
- Answer choicesTagsAnswer choicesTags