Directional selection is where one phenotype is favored, so an example would be "a population of madagascar hissing cockroaches suffers heavy predation from lizards. Because their heads are small, the lizards are unable to eat the very largest adult cockroaches, and instead prey upon small and medium sized adults, so as a result the large cockroaches are favored and live".
Meanwhile, disruptive selection is where both extreme phenotypes are favored, an example would be "a population of rabbits can have black fur, white fur or grey fur. This population of rabbits lives in an area of white rocks. When a local volcano erupts, black volcanic rock now dots the landscape amongst the white rocks. Now the black and white rabbits live longer because the black and white spots on the landscape camoflauge them. The two extreme phenotypes are being favored."
The correct option is A, FEEDING HABIT AND MIGRATION. From the passage given above, it can be seen that seagulls are scavengers, they usually eat from garbage dumps while wild geese eat seeds and insects, thus they differ in feeding habit. In term of migration, seagulls does not follow seasonal pattern of annual migration while wild geese do. These are the contrasts between the two birds.
I got BW, Bw, bW, and bw
you should be able to get all the possible traits because both of them are heterozygous.
A glucagon<span>oma </span>may be a terribly<span> rare </span>tumour<span> of the </span>exocrine gland within which there's a rise<span> in </span>unleash<span> of the </span>internal secretion<span> glucagon, </span>inflicting<span> a characteristic </span>efflorescence<span> and raised </span>glucose<span> levels.due to this the </span>glucose<span> level </span>are going to be exaggerated<span>.Diabetes mellitus </span>kind one<span>, </span>additionally referred to as kind one polygenic disorder<span>, </span>may be a sort of diabetes within which<span> not enough </span>insulin<span> is </span>made<span>.[4] This </span>ends up in<span> high </span>glucose<span> levels </span>within the<span> body.where as in glucagonoma high levels of chromogranin A, </span>that may be a macromolecule typically<span> found in </span>tumor<span> tumors, and anemia, </span>that may be a<span> condition </span>within which you've got a low<span> level of red blood cells.</span>
