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expeople1 [14]
3 years ago
9

Which is the BEST explanation for how fluid pressure from freshwater helps plants to stand upright?

Biology
2 answers:
Vinvika [58]3 years ago
5 0
D) freshwater is a hypotonic solution, which causes the plant cells to swell because of turgor pressure.

Anni [7]3 years ago
3 0

Answer:

The correct answer is option D.

Explanation:

Osmosis refers to the procedure by which the molecules of water move from the area where they are highly concentrated to the area where they are present in low concentration via a semipermeable membrane. One use of osmosis is that it provides support to plants.  

A hypotonic solution refers to a kind of solution, which possess more molecules of solvent, in the given case it is water and fewer molecules of solute. The freshwater is hypotonic to plant cells, therefore, the cells of the plant captivate water osmotically, and its size increases and become turgid. This produces an external opposite pressure, which is equivalent to the wall pressure that maintains the plant's upright position.  

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Explain the process of cross-pollination.
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Mendel observed that traits could either be dominant or recessive.

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Explanation:

In cross pollination pollen transfer takes place from anthers to stigma. In Mendelian genetics the anthers of the plant was removed because it has both male and female parts on same plant so that self pollination does not take place.

The importance of cross pollination is that it creates diversity in the plant species since the traits having different alleles are combined to form the progeny plant. The offspring are healthier and high quality seeds are found.

Mendel observed that traits are either dominant or recessive in general.  It was observed that when homozygous parents were crossed, the progeny in F1 generation always had dominant trait. The recessive trait only appeared when F1 generation offspring were self pollinate.

Blended traits or incomplete dominance appear when alleles get blended and exhibit the traits in phenotype. The phenotype appeared will not be matching with either parents.

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7 0
3 years ago
How can you tell the difference between the different phases of mitosis each cell is in?
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What is the layer of stem cells that constantly divide to renew the epidermis?
Mnenie [13.5K]

Answer: I think, I may be wrong, but I think the answer is stratum basale.  i <em>found this online</em>

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