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masha68 [24]
3 years ago
9

A population of a tree snail species has different patterns in their shells. These slight

Biology
1 answer:
Alja [10]3 years ago
5 0

Variations can be genetic or environmental, the traits are passed from one generation to other generation of snail is from from both parents to offspring and through the environment.

The correct answer is C.

Explanation:

Genetic variation in an organism is passed to the offspring by its parents.

environmental variation is the the result of different environment with which individual adapt.

Natural selection is a process in which a suitable trait which is well adapted to the environment is passed on tho future generations.

Genetic variation is the change in DNA or gene of the individual trait. The tree snails having different pattern in their shells is due to the habitat they are living in.

The snails which have well adapted to the environment are able to reproduce and pass on the traits to their progeny. The variation is due to the traits passed from parents through the environment also.

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Answer: Mouth. Liver. Esophagus.

Stomach. ...

Gall bladder. ...

Pancreas. ...

small intestine. ...

large intestine.

Explanation:

3 0
2 years ago
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Hemophilia is a disease that causes uncontrollable bleeding. If a father has it, all of his daughters will be carriers of the di
Ipatiy [6.2K]

Answer:

<em>Yes, the following description is true.</em>

Explanation:

Hemophilia is a sex-linked recessive disorder. This means that only one allele recessive allele for the trait in males will cause the disease to occur in males. However, for females, there should be two recessive alleles present for the gene for the trait to occur. A female carrying one recessive allele for the trait will be a carrier.

If a father is hemophiliac, this will mean that all the daughters will be carriers for the disease as they will have one of the allele for the trait from the father. On the other hand, about half of the sons will have the disease if they get the recessive allele from the father for the trait.

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3 years ago
Drag each label to the correct location on the chart
katovenus [111]
Answer:  
1. Breathing moves air in and out of the lungs.
 2. Oxygen diffuses from alveoli in the lungs into capillaries.
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4 0
3 years ago
In an individual of genotype aa, where are the a and a alleles physically located? view available hint(s) in an individual of ge
Alex787 [66]

Answer:

One allele is on one chromosome, and the other is in the same position (locus) on the homologous chromosome.

Explanation:

The genotype of an organism refers to the genetic makeup or complete set of genes. The genes control the trait of an organism and exist in an organism in their alternative form called alleles.

Since the alleles are the alternative form of a gene, therefore, they must be present at the same position called a locus.  

These alleles are present on the homologous chromosome in which each homologous chromosome is contributed by each parent. Therefore when the genotype is aa then a and a allele will be present on homologous chromosomes in the same position.

Thus, the selected option is correct.

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3 years ago
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How does the process of translation convert information from a dna code to an rna code?
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Explanation:

The nitrogen bases in DNA code for the sequence of amino acids that make up a protein

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