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3 years ago

How might genotype frequencies of alleles for body size change under directional selection?

Biology

2 answers:

DENIUS [597]3 years ago

8 0

Answer:

Genotypes that represent larger individuals become more prevalent.

Explanation:

Directional selection is changing genotypes in a particular direction.

jolli1 [7]3 years ago

5 0

Under the directional selection, the genotype might change and the genotypes is the one that represent larger individuals become more prevalent. It might change, the Genotype frequencies under directional selection that the Genotypes that represent larger individuals become more prevalent. The answer in this question is the genotypes is the one that represent larger individuals become more prevalent.

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While Mitosis produces 2 identical cells for growth, repair and replacement, what is the purpose of Meiosis? (Choose 3) a keepin

Sophie [7]

Answer:

Answer is D.Produce non-identical genetically different gametes and reduction of chromosomes,creating a haploid gamete.

Explanation:

Meiosis is essential for sexual reproduction.In humans diploid gamete-mother cells or germ line undergo meiosis to produce haploid gametes.

The chromosomes pairs of each parent undergo crossing over during meiosis.so daughter cells i.e gametes have genetic variations.When gametes fuse and form zygote ,its genetic make up is different from both parents.thus meiosis allows a species to bring variations in next generations.Benenficial variations help organisms to adapt to the changes in environment.

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3 years ago

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1.what is carbon cycle?

IrinaK [193]

Answer:

The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change .

Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger. Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt.

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3 years ago

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Based on the reading, meatpacking plants were most concerned about:

alina1380 [7]

The meatpacking plants were mainly concerned about making money.

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What protects the stomach from acidic gastric juices?

Murljashka [212]

Mucous cells is what I think is the answer. hope it helps ;)

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4 years ago

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Ever since she was mugged a month ago, Mona experiences sudden high levels of anxiety when she leaves her apartment. What type o

Molodets [167]

Answer:

The correct answer is tranquilizer.

Explanation:

Tranquilizer is used to diminish fear, anxiety, agitation, tension, and the associated conditions of mental disturbances. Tranquilizers are differentiated into two prime categories, that is, minor and major. Tranquilizer is a depressant, which is generally recommended for a short time duration. Thus, in the given case, tranquilizer would have been recommended.

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3 years ago