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3 years ago

What does the roots and the stem do differently?

2 answers:

5 0

Roots are the underground part of the plant, and the main function is the absorption of water and minerals from the soil, conduction, storage of reserve foods and mainly in the anchorage of the plant. The chief distinction from the stems is the lacking of buds and leaf scars, but have root cap and branches that originate from internal tissues than from buds. And Stems are the part of the plant, that possesses buds, leaves and roots at its basal ends. The primary function of the stem supports the leaves and to transport minerals and water to the leaves, where it proceeded to convert into useful products by the process of photosynthesis, and then further these are transported to other parts of the plants including roots.

goblinko [34]3 years ago

3 0

Stem

1. Grows upward show negative gravitrotropism

2. Stems don't absorb water and nutrients

3.Stems have trichomes

Roots

1 show positive gravitrotropism

2 absorb water and Minerals

3 bears root hairs

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dem82 [27]

Hey there! :D

When we are talking about gametes, we can use a punnet square, or in this case, common knowledge. If two of the alleles for one phenotype are the same, we can infer there will only be two variations of the genotype. (because there are two dominant SS genes) We already know that "D" must be the answer. Firstly, there will be one allele for each gene, so there will always be an "S" and a "T" no "SS" or "tt" (when talking about gametes). That leaves us with B and D but there is no recessive "s" in the original genotype, so the answer must be "D".

I hope this helps!

~kaikers

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3 years ago

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Likurg_2 [28]

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3 years ago

The molecular clock has limited usefulness for estimating divergence times among species in part due to the saturation of DNA se

Greeley [361]

Answer:

In highly diverged lineages, the substitutions process will occur at sites that have been substituted previously.

Explanation:

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This clock does not measure any time but the number of mutations, and other changes over certain time. Sometimes its useful property might be limited due to the highly diverged lineages.

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3 years ago

Was the allele for white fur ever fully eliminated from the gene pool of the population? Explain why you think the allele would

Alina [70]

Answer:

Explanation:

According to hardy-weinberg principle that says in a large random mating population in the absence of migration,mutation and selection the gene and genotype frequency remains constant.

In a large random mating population the frequency of an Allele for white fur will remains in the population when there is no migration,mutation, or selection but the organism mate at random leading to production of offspring with similar Allele with there parents but when the population is small and random mating occur some allele will be selected against and lost in the population due to flunctuation in the population.

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3 years ago