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JP

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The process of conjugation is described by four of the five statements below. Select the exception.

A) In the process of conjugation, one cell gives a plasmid to another cell.
B) Cells get together for conjugation when one cell extends a sex pilus to another cell.
C) The cell that made the sex pilus passes a copy of its plasmid to the other cell.
D) Conjugation is a mode of cellular reproduction.
E) Each cell involved in the exchange can pass the plasmid on to other cells during future gene transfers.

On Jun 18, 2024


D
JP

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The thick layers of cells covering and protecting the delicate apical meristem is called the:

A) root cap.
B) root hairs.
C) pericycle.
D) adventitious root.
E) radicle.

On Jun 17, 2024


A
JP

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In summer, the upper and lower levels of a lake are separated by the ____.

A) limnetic zone
B) thermocline
C) littoral zone
D) lentic zone
E) eutrophic zone

On Jun 15, 2024


B
JP

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Due to the contraction of smooth muscle in the walls of the dermal blood vessels,

A) the blood vessels become dilated.
B) body heat is conserved.
C) more blood enters into the heart.
D) body temperature tends to drop in that area.
E) more blood flows to the skin.

On May 19, 2024


B
JP

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Briefly describe the possible outcomes if a population of allopolyploids were to evolve in an area into a new species.

On May 17, 2024


Concepts to Consider: The new species may not be able to compete with the original parental populations; it may coexist with the parental populations; it may displace one or both of the original populations.
JP

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A place where two or more bones come together is a/an ________.

A) cavity
B) joint
C) contusion
D) articulation
E) Both "joint" and "articulation" are correct.

On May 16, 2024


E