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scoundrel [369]
3 years ago
5

Which of the following is a correct statement about a difference between xylem and phloem transport? A. Transpiration moves phlo

em sap but not xylem sap. B. Xylem sap moves from sugar source to sink, but phloem sap does not. C. Phloem carries water and minerals; xylem carries organic molecules. D. Active transport moves xylem sap but not phloem sap. E. Xylem sap moves up; phloem sap moves up or down.
Biology
1 answer:
Paul [167]3 years ago
3 0
Correct is the option E
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Phoenix [80]
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3 years ago
In which phase do sister chromatids line up in the middle of the cell, (in 'single-file', without a homologous partner)? Group o
ipn [44]

Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

3 0
3 years ago
Which of these processes is responsible for generating the most ATP within cellular respiration? A. Glycolysis B. Krebs cycle C.
erica [24]
The electron transport
8 0
4 years ago
Which word means the same processes that are happening on Earth today are the same processes that happened in the past?
boyakko [2]

Answer:

uniformitarianism

Explanation:

Found from quizlet.

7 0
3 years ago
Describe the relationship between proteins and nucleic acid
Dmitry [639]

Answer:

Explanation:

Proteins and Nucleic Acids are not similar in structure. They look nothing alike, either as large molecules or in terms of their building blocks. While they're both made up of mostly carbon, hydrogen, nitrogen, and oxygen, the elements are assembled in vastly different ways. The major relationship between the two has to do with protein production -- DNA contains the information that a cell uses, with the help of RNA, to make protein.

6 0
3 years ago
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