<h2>Answer:</h2>
The two reasons are given below:
- Natural selection.
- Lack of food
<h3>Explanation:</h3>
Natural selection is the phenomenon of the evolution in which the organisms able to fit in the changing environment survive while other organism died. Hence the survival if the fittest and then these organisms. Further reproduce to give birth organisms more fit to the changing environment.
The long neck giraffe survive but short neck died. So the population of long neck increased while short neck go extinct.
Other reason is the change of food resource. The food resource change from grass to long trees.
I think all three ideas should be selected since they were all in the blue box so it seems like it’s included
I hope this help but the metalloids is gruop five if that what your asking if not i will answer the other question for you
Answer: gametes, sperm, meiosis
Drives comes from the Biological environment.The Incentive comes from the external environment.
The biological environment is termed as the natural biological environment. For example, plants and wild animals which affects life of human being.
External environment is composed of the outside factors which results in operation of business.
There are two types of external environment. For example, macro environment and micro environment.
Some factors like suppliers, financiers, marketing intermediaries, customers, and public per captions can affect a micro environment.