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Verdich [7]
4 years ago
7

What valve prevents blood from returning to the right ventricle?

Biology
1 answer:
Nat2105 [25]4 years ago
8 0
<span>tricuspid valve prevents blood from returning to the right ventricle.</span>
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Alja [10]
The answer to the given question (though the question isn't given), I can assume this is the same as a previous one as the answer is C.
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3 years ago
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Anni [7]
What is the question ?
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3 years ago
Mendel crossed plants that produced only round seeds to those that produced only wrinkled seeds. In the next generation, all the
Artist 52 [7]

Answer:

Dominance

Explanation:

Mendel discovered certain principles that governs heredity or inheritance when he conducted experiments. In his experiments, he discovered that an organism receives two copies of a gene called allele, from each parent.

He discovered that one allele of a gene has the ability to mask or suppress the expression of its allele variant in the same gene. He called the allele that masks or is expressed, DOMINANT allele, while the allele that is masked, RECESSIVE allele. Based on this observation, he named his first principle, LAW OF DOMINANCE.

In this case, he crossed a purebreeding round-seeded pea plant and a purebreeding wrinkled-seeded pea plant, he noticed that in the F1 generation, all the offsprings possessed round seeds. This led to the conclusion that the allele for round seeds masks the phenotypic expression of the wrinkled allele in a heterozygous state. Hence, the allele for round seeds is dominant while the allele for Wrinkled seeds is recessive.

4 0
3 years ago
Greg is boiling water on the stove for some noodles. What object can he safely hold while draining the water from the noodles af
vodomira [7]

the answer is b)  pot holder

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3 years ago
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How does the tiny acorn grow into a gigantic tree? Where does all that matter come from?
Ede4ka [16]

Answer:

Acorns need the right soil conditions to germinate and sprout. Most germination of trees will begin during the early spring season. Given these conditions, the acorn will start to germinate and grow a taproot that pushes deep into the surrounding soil.

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