What is the significance of a common ancestor in evolutionary biology?

Evolutionary Relationships and DNA Analysis

Interactive Video
•
Biology, Science, Other
•
9th - 10th Grade
•
Hard

Patricia Brown
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It suggests species are unrelated.
It indicates that all species are identical.
It means species cannot evolve.
It shows that all species have a shared origin.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the 'pick the odd one out' game, why was the lemon tree considered the odd one out among chimpanzee, lemon tree, and human?
Because it is a plant, not an animal.
Because it has more limbs.
Because it has eyes and ears.
Because it is more closely related to humans.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a phenetic tree illustrate in terms of evolutionary relationships?
The lifespan of a species.
The physical characteristics of species.
The evolutionary divergence of species over time.
The diet of different species.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does DNA sequencing help in determining evolutionary relationships?
By comparing the physical size of species.
By analyzing the color of species.
By comparing DNA nucleotide sequences between species.
By observing the behavior of species.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of DNA-DNA hybridization in evolutionary studies?
To compare the DNA compatibility between species.
To determine the physical strength of species.
To analyze the diet of species.
To measure the temperature of species.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is cytochrome C used for in evolutionary biology?
To measure the speed of species.
To analyze the habitat of species.
To compare amino acid sequences between species.
To determine the color of species.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the protein comparison game, which two species were found to be most closely related?
Dog and cow
Human and chicken
Dog and chicken
Human and pig
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