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madam [21]
3 years ago
5

Which of the following statements about the small intestine is false?A. The inside of the small intestine is called the lumen.B.

Absorptive cells that line the small intestine have microvilli, small projections that increase surface area and aid in the absorption of food.C. Microvilli are lined with blood vessels as well as lymphatic vessels.D. The inside of the small intestine has many folds, called villi.
Biology
1 answer:
Gnesinka [82]3 years ago
3 0

Answer:

Microvilli are lined with blood vessels as well as lymphatic vessels.

Explanation:

The small intestine is one of the most important part of the body. This is the main site of digestion and absorption of food in the body. The three main parts of small intestine - dedenum, jejenum and ileum.

The small intestine has both villi and microvilli in its structure. These villi helps in increase in the surface area for absorption. Microvilli are lined with the blood vessels only and not with the lymphatic vessel. This vessels are directly connected to the hepatic portal system.

Thus, the correct answer is option (C).

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The process which takes place in guard cells but not in other epidermal cells is?​
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Answer:

guard cells chloroplasts , involved in the photosynthesis where epidermal cells are living cells covering the outside surface of the herbaceous plants they contain a thick covering of cutting which reduces the water loss from Plants epidermal cells in roots are specialized for water and ion absorption don't know if it helped but good luck

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Unlike prokaryotic cells eukaryotic cells have the ability to
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The answer is A.

Prokaryotic organisms are simpler than eukaryotic organisms are are single-celled. They do not contain the genetic information to form complex, specialized structures as eukaryotes do, so they cannot form multi-cellular bodies. The remaining options apply to both prokaryotes and eukaryotes.
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How does temperature change from the surface of the earth and into space?
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C it will be c because earth has water

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3 years ago
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As a plant grows, new root hair cells are formed from unspecialised cells.
Marina86 [1]

Answer:

Root hairs appear in the root maturation zone and differentiate from unspecialised cells called trichoblasts.

Explanation:

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4 0
3 years ago
Explain the process of cross-pollination.
Anna007 [38]

Cross pollination is the transfer of pollen of different species to stigma of different species of plants.

Cross pollination results in healthy, viable and diverse plants.

Mendel observed that traits could either be dominant or recessive.

Blended traits or incomplete dominance is the condition in which dominant allele could not produce its trait alone instead blending with recessive allele takes place giving new phenotype to progeny.

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.

The example is a white coloured flower is crossed with red colour flower the resultant colour of the flower is pink. It shows that dominant allele red is not completely dominant and gets blended with white colour.

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