Answer:
D. This is an example of directional selection in which one end of the bell curve is better adapted to its environment than the other end.
Explanation:
Directional selection is when one extreme end of a trait of a population is favored. In this scenario, the trait being discussed is the length of a giraffe's neck with the long necked giraffes having an advantage. Their ability to reach more food increases their chances of making it to reproductive age and pass on their genes. Therefore, natural selection pressures giraffes to adapt and evolve over time to increase their chances of survival as a species.
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Answer:
Option (2).
Explanation:
Skin may be defined as the largest organ of the body. Skin provides the first line of defense in the organisms. The skin secretes different enzymes and chemicals that kill the pathogens.
The patient with the burned skin are more susceptible to the pathogen and has weakened immune system. To cover the burned skin surface, skin can be taken from the other body parts as the skin has the same property and shows the same antigen as the replaced skin.
Thus, the correct answer is option (2).
Answer:
A process or system that is used to produce a particular result.
Answer:
The first type is the primary consumer, an organism that ONLY eats producers.
Explanation:
The first type is the primary consumer, an organism that ONLY eats producers. That means that primary consumers ONLY eat plants or algae. Examples include cows (who eat grass and hay) and many types of insects (who collect and use pollen or eat leaves on trees).
Answer:
It disappears, there will be no more magnetic field when the eclectic current stops.
