Question
1:28
Canvas Stude…
LTE 174
Youthe
: MULTIPLE-CHOICE QUESTION
Choose the pressures below which can cause natural selection. Click all that apply.
Two types of birds fighting for the worms after a storm
Too many fish in the same lake
A giraffe wants to have a long neck so it can reach higher leaves.
A wolf eating small black
rabbits in a snowy environment
Rewatch
Submit
Canvas Stude…
LTE 174
Youthe
: MULTIPLE-CHOICE QUESTION
Two types of birds fighting for the worms after a storm
Too many fish in the same lake
rabbits in a snowy environment
Rewatch
Submit
Ask by Carter Lee. in the United States
Jan 22,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The pressures that can cause natural selection are:
- Two types of birds fighting for worms after a storm
- Too many fish in the same lake
- A wolf eating small black rabbits in a snowy environment
Solution
To determine which pressures can cause natural selection, let’s analyze each option:
-
Two types of birds fighting for the worms after a storm
- Yes. This scenario involves competition for limited resources (worms) following a disruptive event (storm). Such competition can lead to differential survival and reproduction, driving natural selection.
-
Too many fish in the same lake
- Yes. Overpopulation leads to increased competition for resources like food and habitat. This competition acts as a selective pressure, favoring fish with advantageous traits for survival and reproduction.
-
A giraffe wants to have a long neck so it can reach higher leaves
- No. This statement describes a trait rather than a selective pressure. Additionally, attributing a “desire” to a giraffe anthropomorphizes the animal. Natural selection acts on existing variation within a population, not on individual desires.
-
A wolf eating small black rabbits in a snowy environment
- Yes. Predation by wolves, especially if it disproportionately affects small black rabbits, creates a selective pressure. Rabbits with traits that make them less visible or more adept at evading predators in snowy conditions are more likely to survive and reproduce.
Therefore, the pressures that can cause natural selection are:
- Two types of birds fighting for the worms after a storm
- Too many fish in the same lake
- A wolf eating small black rabbits in a snowy environment
Answered by UpStudy AI and reviewed by a Professional Tutor
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Simplify this solution Extra Insights
Natural selection is influenced by various pressures that can either support or hinder the survival of species. When two types of birds compete for limited resources, such as worms, this competition can drive natural selection as only the feistiest will thrive. Additionally, the presence of too many fish in a lake leads to resource depletion, making it a struggle for survival—resulting in only the fittest fish thriving.
Conversely, factors like a giraffe wishing for a long neck do not align with natural selection because traits are not acquired based on desire. Instead, it’s the environmental pressures, like wolves hunting small black rabbits in snowy settings, that actually spur natural selection, favoring rabbits with better adaptations to escape predation.
