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DENIUS [597]
3 years ago
11

A subatomic particle that has no charge and very small mass is called ____?

Biology
1 answer:
STatiana [176]3 years ago
3 0
A neutron is one of the three subatomic particles, between electrons and protons it has no charge since it is neutral.
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Answer: Option B.

Neural crest and peripheral nervous system.

Explanation:

Neural crest are bilateral paired cells of the neural tube that arise from the ectoderm layer of the embryo. Thesescells move to different part of the body and differentiate into various cell types like melanocytes,cartilage and bone, smooth muscle, craniofacial, neurons, gangalia e.t.c. The neural crest running through neural tube develop into peripheral nervous system after birth. Peripheral nervous system consist of neurons and gangalia outside the nervous system The peripheral nervous system connect the central nervous system to organs, skin and limbs.

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3 years ago
Which element has a complete valence electron shell?
Rasek [7]

Answer:

Argon

Explanation:

The element that has a complete valence electron shell is argon (Ar) since it is a noble gas in the last group on the periodic table. destinymitchell966

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2 years ago
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The rate at which blood flows through the human body can change in response to multiple factors. Which statement describes one o
Alona [7]

Answer:

B

viscosity of blood causes an increased resistance in the blood vessels and

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3 years ago
Which statement is true? Bronchitis can result in hoarseness. Cystic fibrosis is a genetic disorder that causes thick mucus secr
Natalka [10]

<u>Answer</u>:  Cystic fibrosis is a genetic disorder that causes thick mucus secretions.

<u>Explanation</u>:

  • <em>Cystic fibrosis</em> is a genetic disorder caused by mutations in a gene that makes a protein called CFTR (cystic fibrosis transmembrane regulator).
  • The CFTR protein normally functions as a channel for transport of chloride ions in cells responsible for mucus production.
  • A person suffering from cystic fibrosis produces abnormal CFTR protein or no CFTR protein at all.
  • This is the  reason that thick, sticky mucus is produced instead of the thin, watery kind.
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Which of the following statements is correct regarding engineering maize plants with a herbicide-resistance gene using Agrobacte
Mariulka [41]

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b. The herbicide-resistance gene is cloned into the T-DNA region of the Ti-plasmid.

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Ti-plasmid has the ability to introduce part of its DNA (t-DNA) into the genome of host plants. This is very important for the relationship of genetic manipulation in maize plants, with the aim of inducing a gene that promotes herbicide resistance. In addition, T-DNA has many genes that code for the production of plant growth phytohormones, which is extremely important for the cloning process to work. In this case, we can assume that the correct answer for yours is the letter B.

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3 years ago
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