Estuaries are often highly polluted bodies of water and can be used to measure the overall health of an ecosystem. Devise a logical argument for why estuaries become so polluted and provide at least 2 examples of the importance of estuaries.

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Answer 1

Answer: The reason why estuaries have become so polluted is that humans have been piling their various wastes in them. We have introduced chemicals and many waste products that are hazardous or potentially harmful to the estuaries ecosystem.

Estuaries are very important and vital for the ecosystem. They provide two important services that ensure life. They provide water filtration and habitat protection.

I hope it helps, Regards.

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All the chromosomes in a diploid cell are paired. True or False

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TrueA diploid is a cell that contains two haploid sets of chromosomes

Topograhic maps differ from geologic maps because they shows ______ A. Physical composition and features. B. Shape,steepness,and height. C. Precipitation amounts

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Answer:

B. Shape,steepness,and height

Explanation:

The maing differences between topographic maps and geologic maps is that the topographic maps show shapes, steepness and height, and the geologic maps usually just show types of rocks, geologic features like faults of folds in the region that the map is showing. Topographical maps show points in places that have similar altitude above the sea so you can have an idea of height.

Topographic maps shows physical composition and features.

In which layer do organisms on earth live?

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Organisms on earth live in the Biosphere

A group of organisms of a certain species that isin one area at a given time is known as
A an ecosystem B a community C a population D a trophic level

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A group of organisms of a certain species present in one area at a given time is called a population. So the correct option is C.

What is a population?

The entire number of inhabitants of a particular area counted at a particular time is referred to as the population of that area. The population of any area is never stagnant and it is continuously changing. A day after a count a new individual might be born and someone might die.

The population is controlled by various limitingfactors. These are the availability of living space. Availability of food, habitat, and presence of predators are some of the factors that control the population of a species and act as limiting factors.

The population of a species are able to interbreed within themselves to produce similar organisms to continue the population.

A reduction in the size of a population is called a populationbottleneck and an increase in the size of a population is called overpopulation.

Therefore the correct option is C.

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A group of organisms of a certain species is called B. a community.

How are autosomal traits, including recessive genetic disorders that are carried in a population, related to Mendel's observations of heredity?

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The expression of the alleles is independent of the organism's sex; both males and females express the allele.

The alleles are not expressed on the basis of sex, that is, in sex-linked fashion. Both male and the female express the traits.

Which process must the cell undergo to have identical cells at the end of cell division? meiosis mitosis sexual reproduction gamete formation

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The correct answer is Mitosis.

The mitosis is a type of cell division, in which the parent cell produces a similar type of daughter cell. The daughter cells, which are formed by the process of the mitosis would have the same number of the chromosomes and the ploidy of the daughter cells would also be same as the parents. In the sexual reproduction, the process of meiosis result in the formation of haploid cells during the process of gamete formation. Hence, meiosis, sexual reproduction, and gamete formation are incorrect answers.

the cell must undergo the process of mitosis

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