Answer:
Disruptive selection
Explanation:
According to the infographic that is attached below showing different the three main types of selection that occurs as a result of natural selection taking its course on any population, we can draw our conclusion regarding the information given to us from the question.
From the question above, it states that the finches studied by Darwin are majorly finches with either small beak or large beak which are all adapted to suit the type of food available for the finches in the islands. Whereas, finches with intermediate beaks are favored against.
According to the infographic, disruptive selection can be said to have taken place as extreme traits are favored against intermediate traits on the islands.
Answer:
1) The smooth trait is dominant.
2) The F1 generation contains the genotype Bb. They will be crossed to form BB: Bb: bb (1: 2:1). The individuals will have the probability of 25% homozygous smooth, 50% heterozygous smooth, 25% wrinkled
B b
B BB Bb
b Bb bb
3) This cross would have shown that there would have been a possibility of 50% homozygous smooth and 50% heterozygous smooth.
B B
B BB BB
b Bb Bb
4) This cross would have resulted in offsprings having a chance of 50% wrinkled and 50% being heterozygous smooth.
B b
b Bb bb
b Bb bb
Explanation:
Dissecting polar bear feces formulate a protocol. As said, topographical maps of t oceans pelagic fish create realistic crete!
Cyanobacteria, in contrast to saprotrophic bacteria, are able live in an environment that lacks organic nutrients by utilizing nitrogen from the atmosphere. Also, they are able to serve since they are able to make their own food by the process of photosynthesis. They are also known as the blue-green algae. These bacteria live in water and contain chlorophyll which makes them photosynthetic. They are considered to be the only prokaryotes that has the ability to produce oxygen. They are so small and unicellular so that they would grow in colonies which can are large that can be seen by the naked eye.