Which scenario is the best example of competition between individuals of the same species?(1 point)
Responses
Hermit crabs compete for shells to live in.
Hermit crabs compete for shells to live in.
Trees in a forest compete for sunlight.
Trees in a forest compete for sunlight.
Savannah predators compete to consume antelope.
Savannah predators compete to consume antelope.
Fish compete for shelter in a coral reef.
Fish compete for shelter in a coral reef.
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All of the scenarios listed are examples of competition between individuals of the same species. However, the best example would be hermit crabs competing for shells to live in.
When considering competition between individuals of the same species, what allows some individuals to survive over others?(1 point)
Responses
Some choose not to compete for resources.
Some choose not to compete for resources.
Some are not impacted by rapid changes.
Some are not impacted by rapid changes.
Some do not need resources.
Some do not need resources.
Some are better adapted.
Some are better adapted.
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The correct answer is "Some are better adapted." In a competition for resources, the individuals that are better adapted to their environment or have advantageous traits are more likely to survive and reproduce, passing on those traits to future generations.
Antelope are hunted by both crocodiles and lions. When antelope bend down to drink water, they are vulnerable to lions on land and crocodiles in the water. The lions hide in the grass and ambush them, while the crocodiles hide in the water and ambush them.
Which environmental change would cause the crocodiles to lose the competition for food?
(1 point)
Responses
wildfire
wildfire
monsoon
monsoon
flood
flood
drought
drought
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The correct answer is drought. If there is a drought and the water levels decrease significantly, the crocodiles would lose their advantage of hiding in the water to ambush the antelope. This would give the lions on land a greater opportunity to hunt the antelope successfully.
What might allow an invasive species to outcompete a native species?(1 point)
Responses
They have no predators, so they can spread rapidly.
They have no predators, so they can spread rapidly.
They use the same shelter or space.
They use the same shelter or space.
They are introduced by humans at high rates.
They are introduced by humans at high rates.
They eat the same food resources.
They eat the same food resources.