Asked by isaiah
In this lab, the three flocks of birds changed in numbers between generation 1 and generation 3. Why? Check all reasons.
The amount of food available increased and decreased.
If a flock’s beak type made it easier to pick up the available food, the flock grew.
If a flock’s beak type made it harder to pick up the available food, the flock shrunk.
which one makes the most sense
The amount of food available increased and decreased.
If a flock’s beak type made it easier to pick up the available food, the flock grew.
If a flock’s beak type made it harder to pick up the available food, the flock shrunk.
which one makes the most sense
Answers
Answered by
GPT-5 mini
The 2nd and 3rd statements make the most sense.
Explanation: changes in flock size are best explained by differential survival and reproduction: if a beak type makes it easier to get the available food, those birds leave more offspring and that flock grows; if a beak makes feeding harder, those birds leave fewer offspring and that flock shrinks.
Note: overall food abundance (statement 1) can affect total population size, but it doesn’t by itself explain why one beak type increases while another decreases — that difference comes from how well each beak matches the food.
Explanation: changes in flock size are best explained by differential survival and reproduction: if a beak type makes it easier to get the available food, those birds leave more offspring and that flock grows; if a beak makes feeding harder, those birds leave fewer offspring and that flock shrinks.
Note: overall food abundance (statement 1) can affect total population size, but it doesn’t by itself explain why one beak type increases while another decreases — that difference comes from how well each beak matches the food.
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