X10.1.39question the population of a country has been decreasing for several decades. in 1990, the population was about 145 million people. in 2010, the population was about 138 million people. determine thepercent decrease in the country's population during this time period. elettithe country's population decreased by about% during this time period.​

A. Only one population will thrive; the other population will decrease to zero.

Explanation:

According to the competitive exclusion principle if the two species are dependent upon the same ecological niche, then the one which is more superior and stronger than the other will survive and the other one will reduce in size of the population or may extinct.

According to the given situation, the two species of earthworms are subjected to same treatment of abiotic factors such as temperature, water supply. The food was in the form of bread scraps. The more strong and competitive species is likely to thrive the food and will survive the other species population will decrease.

A. Only one population will thrive; the other population will decrease to zero.

The competitive exclusion principle also known as Gause's law , states that two species which thrive for the same resources cannot coexist. Out of the two species one has extra advantageous characteristics to survive for long than the other. For survival   species undergo evolutionary adaptations and increases chances of survival. Here, abiotic factors such as temperature and water supply are kept constant therefore has no affect on populations growth and extinction but food in the form of essential requirement for survival can be a competing factor for both species. Species with more adaptation and higher competing tendency will survive and weaker competing species will extinct.

1. Population C

2. Greatest genetic drift

Explanation:

Genetic drift is the change in allele frequencies over generations just by chance or sampling error. In particular, small populations have a minor amount of individuals, and therefore, a minor number of alleles. This can produce that over generations some alleles would be more inherited than others just by chance not because of natural selection or assortative mating. So, in this example, population C is the most prone population to have a great effect of genetic drift.

A “Thanking Oedipus for ridding them of the Sphinx, the Thebans made him king.”

D “O’Neal’s first basketball team in 1992 was the Orlando Magic in Florida.”

C. “Destruction of habitat is a known primary cause of extinction.”

A. cause/effect organization

Explanation:

The main purpose of the first passage is to explain the reasons why Oedipus ended up in the situation of having to marry Jocasta. The text explains that Oedipus was made king as a reward for ridding the Thebans of the Sphinx.

In this passage, the main idea that the reader should get is that which explains the beginning of O'Neal in basketball. Therefore, the statement that best explains this is that O'Neal's first team was the Orlando Magic in Florida.

The fact that destruction of habitat is a known primary cause of extinction is the main idea of this text. In this text, the author wants us to understand how it is that extinction occurs in animals with reduced habitats. He does this through the use of scientific explanations and hypothetical situations.

This is an example of a cause/effect organization, as the author presents both the origin of the conflict (the fact that Laius knew he would be killed by his own son) and the effect that this had on the story (the fact that Laius decided to leave his son to die).

Answer is approximently 9.5 HRS. Hope this helps!

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The answer is letter C

Explanation:

The evolutionary mechanism most likely responsible for the difference between the two populations is natural selection.

The population of Africa is growing every year and increasing as the years go by.

Explanation:

Africa had 230 million in the mid 20-Century and today there are 1.2 billion. That is a very big difference. Also, the fun fact states that 41% of the population of Africa is under age 15 so this means that the newer generations are most likely larger than some older ones. hope this helps :)

The way to solve this question is to essentially reverse the equation I used in the other answer.

I would solve this with some theoretical values. If you start with 3, how long would it take for it to triple, or reach 9.

the equation would look like 9 = 3(2)^t/6, note how the instead of 1/2 it is now 2 in the parenthesis, as it doubles every 6 hours rather than halves every amount of hours.

When placed into an algebra calculator, the answer should be about 9.5 hours