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garri49 [273]
2 years ago
12

Which number in the diagram represents a landform made by the deposition of sediments.

Biology
1 answer:
gogolik [260]2 years ago
4 0
B)landform 2 is what was made by the deposition of sediments
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Scientists build models based on what they know from previous research to derive testable hypotheses. Independently, both Watson
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Answer:

Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species

Explanation:

Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.

5 0
3 years ago
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nekit [7.7K]

Answer:

True

Explanation:

Ice pellets are rain drops that have frozen <em><u>before</u></em> they hit the ground.

(They freeze while they're still in the air)

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3 years ago
Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing sel
aliina [53]

Answer:

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing selection

The Answer is option A (Disruptive selection)

Explanation:

Selection can either shift the mean value of a trait, reduce the trait's variation, or increase its variation.

Genetic variation which allows natural selection to increase or decrease frequency of alleles already in the population is a source of phenotypic variation as it refers to differences in all the hereditary information of members of the same species.

Disruptive Selection is important in maintaining variation and initiating speciation as it Increases Variation by favoring alleles corresponding to more extreme phenotypes. But for it to occur, the mean phenotype has to experience the lowest fitness. Disruptive selection affects the frequency distributions of alleles and genotypes within a population.

Disruptive selection is based on the variance of a trait in a population as it increases genetic variance by equalizing the frequencies of existing alleles at polymorphic loci (a genetic loci with two or more alleles). Disruptive selection maintains and may even increase variation in natural populations by favoring extreme phenotypes, individuals with extreme values for a trait have greater reproductive success than individuals with intermediate values.

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3 years ago
Practice Exercise #4
Amiraneli [1.4K]

Answer ( A,c,B,B,B,B)

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3 years ago
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The. of earth's rotation axis stays the same as it orbits the sun​
yuradex [85]

Answer:

The tilt of earth's rotation axis stays the same as it orbits the sun​.

Explanation:

The axis of the Earth is an imaginary line around which the Earth is known to orbit. The axis of the earth is known to tilt at an angle of 66 and a half degrees. The tilt of the axis of the Earth remains the same and it does nor change as the earth orbits around the sun. The orbiting of the Earth around its axis causes day and night to occur on the planet Earth. The rotation of the Earth around its axis is slowing with time.

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