subject
Biology, 21.02.2020 22:26 serenityharmon1

CRQ QUESTION: A species of birds lives on an island. The thickness of the birds’ beaks varies within the population. The birds feed mainly on seeds from plants. Birds with thinner breaks can eat only small seeds. Only birds with thicker beaks can crush and eat large seeds.

There are many small seeds during years with more rain. During dry years, there are very few small seeds and many large seeds. The large seeds are harder to crush than small seeds.

The graph below shows the average beak thickness in the bird population from 1979-1985. 1980 and 1982 were dry years; 1984 was a wet year; 1979, 1981, 1983, and 1985 received normal rainfall.

Explain why the average break thickness changed between wet and dry years
Explain how break thickness would have changed during the next ten years (1986-1996) if these were wet years.
Name the process that led to this change.

ansver
Answers: 3

Another question on Biology

question
Biology, 22.06.2019 12:30
Creating new things to solve problems and improve life depends on the close interaction of which two fields?
Answers: 2
question
Biology, 22.06.2019 12:40
Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.
Answers: 1
question
Biology, 22.06.2019 13:00
Select the correct answer from each drop-down menu. which phase of mitotic division is the highlighted cell undergoing? the cell is undergoing , which is the stage before .
Answers: 2
question
Biology, 22.06.2019 18:40
Which chemical bond most likely stores the most energy? o a. double carbon-carbon bond o b. single carbon-carbon bond o c. hydrogen-oxygen bond o d. sodium-chlorine bond
Answers: 2
You know the right answer?
CRQ QUESTION: A species of birds lives on an island. The thickness of the birds’ beaks varies within...
Questions
question
Mathematics, 18.10.2020 14:01
question
History, 18.10.2020 14:01
question
Mathematics, 18.10.2020 14:01
question
Mathematics, 18.10.2020 14:01
question
Social Studies, 18.10.2020 14:01
question
Mathematics, 18.10.2020 14:01
question
Mathematics, 18.10.2020 14:01