

Natural Selection amoeba sisters
Interactive Video
•
Other
•
7th Grade
•
Practice Problem
•
Hard
Diamond Powell
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the variations in these frogs?
Their leg muscles.
Their skin color.
Their tongue length.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why did the lighter frogs disappear from the image?
They are better hidden (camouflaged) in this environment.
They are more visible to predators so they were eaten.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fitness in the biology sense is best defined by:
How long the frogs live.
How strong the frogs are.
How many offspring the frogs have.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: Over time, the selection for a trait (dark frog color) could lead to a population who all have this trait.
True
False
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
True or False: Organisms can choose to have variation.
True
False
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Traits that have a positive effect on fitness and help organisms survive and reproduce are called:
adaptations
mutations
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Natural selection explains bacterial resistance to antibiotics because:
bacteria choose to have resistance to antibiotics in their environments and that improves their fitness.
bacteria have variation in their traits, and those that are able to survive antibiotics in their environments have improved fitness.
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