0
Could you breed pugeons with large beaks using artificial selection?
Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What happens to the variation in traits which are under strong natural selection?
It depends on which form is being favored by selection. In directional selection, one of the extremes of the "bell curve" has the advantage. In this case selection will "drive" the variation toward one end. Example: a population of birds where long, narrow beaks have an advantage; variation will be pushed toward longer, narrower beaks until that stops being advantageous. On the other hand, sometimes selection favors the "middle of the road" form. In this case, the variation will be driven toward the middle and the extremes will drop away. For example, a population of moths where a medium shade of coloring has the advantage (not too light or too dark); in this case, you'll get more gray moths, less black and white. This is "stabilizing selection".
What similarities can you find in the beaks of birds which are carnivorous piscivorous nectivorous insectivorous and filter feeders?
Beaks of all birds are used as tools to eat, build, and preen feathers. Beaks are made of keratin; as are their feathers and toenails.
Darwin began to formulate his concept of evolution by natural selection after what?
observation of many species and their geographical locations.
How did Darwin's finches help him find his theory of evolution?
The finches on the Galapagos Islands helped him, as they gave him the basis of his idea of natural selection, which was the backbone of his Theory of Evolution. The birds beaks had altered slightly to enable them to eat the various foods available on their respective islands. This observation then prompted Darwin to extrapolate the data, and say that these small changes could eventually result in a fish turning into a reptile.
What is the relationship between the galapagos finches' beak shapes and their environment?
the beaks adapted to what they ate. all the different beaks have different jobs
How could you use artificial selection to breed pigeons with large beaks?
Artificial selection (or selective breeding) describes intentional breeding for certain traits, or combination of traits. The way to breed pigeons with large beaks is to find pigeons with large beaks of both sexes and mate them and then not allow breeding for pigeons without large beaks. You may also be able to genetically engineer pigeons so that they have large beaks.
What process produced the two different types of beaks shown?
natural selection
What type of natural selection could have produced birds with these two extreme types of beaks?
The description of extreme beak types suggests disruptive selection, where individuals with either extreme of the trait are favored over the intermediate forms. This could occur if there are distinct ecological niches that benefit birds with specific beak shapes. Recommended: ₕₜₜₚₛ://gₒₜᵣₒₚᵢₛₗᵢₘ.cₒₘ/#ₐff₌ᵥᵢₖₐₛbₐbbₐᵣ₀₀₁
What body part of the Galapogos finches appears to have modified by natural selection?
The finches beaks were modified by natural selection. The beak size and shape varied from island to island.
How is disruptive selection different from directional selection?
disruptive selection favors the extremes of a range of selection Disruptive selection refers to natural selection that favors phenotypic extremes. Example (off the top of my head, but based loosely on reality): Consider a population of seed-eating birds with beaks that range in size, so that big beaks are best adapted to eating big seeds, small beaks are best adapted to small seeds, and medium beaks are best adapted to medium seeds. Now suppose that the source of medium seeds goes extinct (perhaps because of a fungal pathogen). The bird phenotype with medium beaks looses its food source; selection favors the big and small beaks.
Based on Darwin's observation of the finches what explanation did he give as to how different types of beaks could have evolved?
there were variations in the beaks already.
Which feature of galapagos finches was important to Darwin in developing his theory of natural selection?
Darwin noticed that the finches in the Galapagos Islands had different types of beaks. He concluded that this meant they must have evolved these beaks, so that each type could find food.
Why are your birds teaching beaks?
First of all, birds cannot teach a noun. If you mean TOUCHING beaks, it could mean they are in love.
Would chickens eat their own eggs if they could fit them in their beaks?
No.
How did the finches help Darwin to formulate his theory of natural selection and evolution?
There were many islands and finches on each. The finches did not fly from their home island to other islands. Different islands had different food for the finches. Darwin noticed that where there were plenty of honeysuckle flowers for the birds to feed on, the finches there had long beaks. On islands where the best bird-food was small seeds, the finches had beaks more like canary beaks, short and strong. Darwin also noticed that the finches were all from the same original flock and had probably mixed up when the islands were closer together and they could fly to any island to feed. So Darwin concluded that when the finches became isolated on different islands, their beaks evolved to be most suitable for eating the food available. The birds with the wrong beaks died young and had few chicks and these chicks unfortunately for them inherited their parents silly beaks. The birds with the right beaks fed well and had lots of chicks who inherited good beaks. So eventually nearly all the finches on any given island had the most suitably shaped beaks.
What are the different types of beaks?
there are hard bird beaks and soft donkey beaks specify which type you want they have razor sharp beaks.
Do hens have beaks?
Yes, to my knowledge all birds have beaks yes they do. if they did not have beaks then how would they
