What are the three main topics covered in this video lecture?

Evolutionary Concepts and Natural Selection

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Climate change, pollution, and conservation
Photosynthesis, cellular respiration, and fermentation
Speciation, selective pressures, and patterns of evolution
Genetic drift, mutation, and gene flow
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the basic definition of a species?
Organisms that have similar physical characteristics
Organisms that are genetically identical
Organisms that can interbreed and produce viable offspring
Organisms that share the same habitat
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is required for speciation to occur?
Isolation and differences in selective pressures
Climate change and environmental stability
Genetic mutation and gene flow
Increased population size and habitat expansion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are largemouth bass in different lakes not considered different species?
They have the same physical characteristics
They can interbreed with each other
They are genetically identical
There is no difference in selective pressures
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of natural selection favors traits at the extremes?
Balancing selection
Directional selection
Stabilizing selection
Disruptive selection
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of natural selection favors organisms in the middle of the trait spectrum?
Disruptive selection
Stabilizing selection
Directional selection
Balancing selection
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an example of directional selection?
Fish with similar body sizes
Moths with different wing patterns
Finches with varying beak sizes
Tortoises on Pinta Island with long necks
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