Answer:
Beaks changed as the birds developed different tastes.
Explanation:
Fruits, seeds, or insects picked from the ground or cacti have affected their evolution. Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits. Shorter, stouter beaks served best for eating seeds found on the ground.
Answer:
The type of natural selection that occur when intermediate phenotype is favored is called STABILIZING SELECTION.
Explanation:
There are 3 major types of natural selection, these are: stabilizing, directional and diversifying selection.
A stabilizing selection is said to occur when natural selection favors average phenotype by selecting against extreme variations. Stabilizing selection usually leads to decrease in genetic variation of the population concerned.
A good example of stabilizing selection is that of snakes, which have deep green color that blend completely with their environment. This set of snakes will escape from predators more than others in the population, which have color that slightly differ from deep green and which do not blend very well with the environment. Those snakes, whose colour do not blend very well with their environment will get killed more easily by the predators and with time will become extinct while those with colour that blend with the enviroment will survive and produce more offspring.
The extinction of snakes from the population will lead to decrease in genetic variation.
Answer:
The organism will be placed under domain Eukarya
Explanation:
- Eukarya includes eukaryotic organisms like plants and animals.
- The organism contain nucleus and also membrane bound organelle like ER,Golgi body,Cytoplasm,lysosome, Chloroplast etc.
- Eukaryotes are multi cellular organism.
- The plants produce oxygen with the help of carbon dioxide,water and sun light.Thus they are called as photo autotrophs or producers.
- They are called multi cellular organism as the cell form different tissues.
- The domain eukaryotes are monophyletic which make up 3 domain.
Bacteria ,archaea,fungi are unicellular organism and they are unable to produce oxygen except some green blue algae and thus they are not place in domain Eukarya.
