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vesna_86 [32]
3 years ago
8

Mutations are not always predictable. Which word best describes this situation?

Biology
1 answer:
7nadin3 [17]3 years ago
4 0
C, when mutations are not always predictable they are random
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How many sperm cells are formed from an original cell in a Drosophila fruit fly at the conclusion of meiosis?
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Answer:

C. Four Haploid Sperm Cells

Explanation:

Meiosis is a cell division measure that creates four haploid cells (gametes) from a solitary diploid germline cell. In males, meiosis is essential for spermatogenesis, the cycle to produce sperm. Sperm are the haploid cells that are produced in meiosis.  

Meiosis is a profoundly moderated cell division measure in eukaryotes that produces 4 cells (gametes) from a solitary cell (mother). Nonetheless, Nondisjunction in the male of Drosophila causes much of the time sperm with an addition or loss of chromosomes.

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In a grassland ecosystem, a prolonged drought has caused depletion in food sourſes for a species of rabbit
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Some individuals in the rabbit population must evolve traits that improve their survival chances
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Material to diffuse is independent or dependent variable...

7 0
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Administration of which classes of medications can decrease secretions of the upper respiratory tract?
svet-max [94.6K]

Answer:

The correct answer is - Cholinergic antagonists.

Explanation:

The cholinergic antagonist is a class of medication that is general terms of agents that bind with choline receptors such as nicotinic and muscarinic that inhibit the effect of acetylcholine and another agonist.

It is a class of drugs that mimics, inhibit, or enhance the action of the neurotransmitter ACh which is the very first transmitter of nerve impulse within PNS that includes the region of ANS that regulates contraction of smooth muscle, such as upper respiratory tract.

Thus, the correct answer is - Cholinergic antagonist.

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Which structure is directly responsible for housing a cell's DNA?
denis23 [38]

Answer:

The nucleus.

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The nucleus is basically "the boss" of DNA along with housing it. Hope this helps!

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