The theory of evolution through natural selection is considered a scientific theory because _____.

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Answer 1

Answer: The theory of evolution through natural selection is considered a scientific theory because it is broad enough in scope to explain many observations, it is supported by a massive body of evidence from many disciplines and it is general enough to provide many testable hypotheses.

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Alga is the Latin word for _____ ?

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I think it is seaweed..

When an organism is asexually it usually has

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It has an organism that is born through asexual reproduction only has the DNA from the one parent. In fact,the typically males have a pens that deposits speed into vaginal of the female

Which of the following statements best describes the major difference between anaphase of mitosis and anaphase I of meiosis? In anaphase I, homologous pairs are separated but sister chromatids stay joined together. In anaphase, spindle fibers pull each set of sister chromatids to opposite ends of the cell. In anaphase I, sister chromatids are separated, forming a total of four haploid cells. In anaphase, tetrads of homologous pairs are separated to form four new nuclei

Answers

In anaphase I, sister chromatids are separated, forming a total of four haploid cells.

Meiosis is the process of cell division by which involving gametes. Cell division is just the same for sperm and egg cells, but they have distinguishable descriptions and labels in the process. Spermatogenesis is for the males’ sperm cells and oogenesis is the process for females’ egg cells. The cell division of meiosis involves the two phases, respectively meiosis I and meiosis II. Meiosis I like mitosis is the cell division that produces diploid cells. These diploid cells are cells that contain a complete pair of chromosomes which is 46. The result is two diploid cells after the first meiosis. To provide clear explanation, in contrast haploid cells only contain 23 chromosomes and are created after meiosis II which is 4 in number.

Answer:

In anaphase I, homologous pairs are separated but sister chromatids stay joined together.

Explanation:

Haiti is settled by peoples of both African and European ancestry. A young couple, both with mixed ancestry, marry and have several children. The children vary widely in the amount of skin melanin production, with one child being lighter than both parents, and one being darker. The simple explanation for this isA.) epistasis.
B.) multiple alleles are available for the one chromosomal locus that governs skin color.
C.) the environment affected the phenotype that developed.
D.) polygenic inheritance.

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Answer:

D.) polygenic inheritance.

Explanation:

Polygenic inheritance is a mode of inheritance wherein the single genetic trait is regulated by more than one gene. Here, the final phenotype of the individual depends on the sum total of the dominant alleles of all the genes involved in the regulation of that trait.

In the given example, a couple of mixed ancestries might have different genes in their genome for skin color. A combination of alleles of these genes in the progeny would produce new skin color which is not present in the parents. For example, a child with all the recessive alleles of the genes for melanin production would have very light skin color while a child with more dominant alleles would have darker skin.

The owners of a shopping mall wanted to determine whether the more expensive Tough Stuff floor wax was better than the cheaper Steel Seal floor wax at protecting its floor tiles against scratches. Therefore, a section of the floor at one of the entrances has been designated to be used for this experiment.What is the independent variable and what is the dependent variable?

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Answer:

floor tiles is dependent

wax is the independent

Explanation:

floor tiles needs to depend on the wax to not get scratches

wax does not need to depend on anything

Final answer:

The type of floor wax (Tough Stuff or Steel Seal) is the independent variable, being manipulated for the experiment, while the level of protection against scratches is the dependent variable, being measured and compared.

Explanation:

In this experiment, the independent variable is the type of floor wax being used (either Tough Stuff or Steel Seal), as this is the factor that is being systematically manipulated to determine its effect on the outcome. The dependent variable is the level of protection the floor tiles have against scratches, which is what is being measured and compared between the different wax types.

The independent variable in this experiment is the type of floor wax being tested, with the two options being the more expensive Tough Stuff floor wax and the cheaper Steel Seal floor wax. The dependent variable is the level of protection provided by the floor wax against scratches on the floor tiles.

Learn more about Science Experiment Variables here:

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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.

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