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ICE Princess25 [194]
4 years ago
5

What is an example of a muscle of facial expression?

Biology
1 answer:
allochka39001 [22]4 years ago
5 0
Buccinators are muscles in the cheek that help smiling.
Laris oculi are muscles helping close eyelids.
Orbicularis oris is a muscle that helps manipulate the mouth:
the correct answer is D. all the above are muscles that help facial expression.
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The energy needed to start the chemical reaction of breaking down substrates
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Activation energy
Explanation: It’s the energy needed to get a reaction started
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3 years ago
That the allele that gives human red blood cells increased resistance to malarial parasites also reduces the amount of oxygen th
ella [17]

Answer:

A (Genotype)

Explanation:

All organisms possess genetic material which contains information required for certain functions/traits. This genetic material is stored as DNA and contains certain segment that encodes functional products (proteins) called GENE. The make-up of the genes responsible for a particular characteristics in an organism is called the GENOTYPE. Genes occur in variant forms called ALLELES, which are inherited from each parent.

These alleles are responsible for the varying expression of a particular trait e.g. allele T can be responsible for Tallness while the variant form, allele t can be responsible for shortness. In this example, we can see that height is the trait here but the different alleles encode varying expression of it. The combination of the alleles received by both parents, which collectively determines the trait to be expressed is the GENOTYPE.

N.B: The genotype refers to the physically invisible genes not the expressed trait itself, which is the phenotype.

In this case, an allele (gene variant) is responsible for the resistance of Red Blood cells and regulates oxygen carried by them. The phenotype is the resistance that the RBC's possess and its reduced ability to carry oxygen but the combination of alleles responsible for that trait is the GENOTYPE.

4 0
4 years ago
A group of organisms of the same species that live in the same area at the same time is called ___
Leto [7]
The answer is population
5 0
3 years ago
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Mention at least three species of corona virus
lukranit [14]

(I wrote to you more than three types)

There are seven known types of human coronavirus. Four common types (KHUI, OC43, NL63,229E) cause mild to moderate respiratory infection, such as the common cold. There are two types, severe acute respiratory syndrome (SARS-COV) and Middle East respiratory virus syndrome (MERS-COV), that can cause acute respiratory infections. Type VII (nCOV-2019) is the newly discovered novel coronavirus in China.

7 0
3 years ago
how does the nucleus contribute to the transcription and translation of genetic information into proteins.
Bumek [7]

Answer:

transcription and translation are known as gene expression. During the process of transcription, the information stored in a gene's DNA is passed to a similar molecule called RNA  in the cell nucleus.  A type of RNA called transfer RNA also known as tRNA assembles the protein, one amino acid at a time.

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3 years ago
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