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hram777 [196]
3 years ago
6

What are some factors that can decline in human population?

Biology
1 answer:
irinina [24]3 years ago
4 0
1. oxygen
2. diseases
3. food posion
4. pollution ( in the water )
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Competition shapes communities because it is something that people must learn to help eachother out with
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Electrons are transferred in the formation of ______________ bonds. A) ionic B) covalent C) metallic D) all chemical
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Answer: A. ionic

In ionic bonds electron are transferred from one atom to another. In ionic bonds , the metal atom loses electrons to become positively charged cation whereas the nonmetal atom accepts those electrons to become negatively charged anion.

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Question 4 (1 point)<br> Why are nonsense mutations rare?
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When a DNA sequence alteration results in a stop codon rather than a codon that specifies an amino acid, it is known as a nonsense mutation. This is rarely seen in 10% of patients with genetic disease.

<h3>What is nonsense mutation?</h3>

A nonsense mutation in a DNA sequence causes a premature stop codon, also known as a nonsense codon, in the transcribed mRNA as well as a shortened, ineffective, and typically nonfunctional protein product.

Because stop codons, also known as nonsense codons, signal the completion of protein synthesis rather than encoding for an amino acid, they are the source of the term "nonsense mutation."

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5 0
1 year ago
Which group of non-prokaryotic organisms studied in microbiology typically have two life cycle stages: trophozoite and cyst?
Mama L [17]

Non-prokaryotic organisms typically have two life cycle stages: trophozoite and cyst is Protozoa.

<h3>What is Protozoa?</h3>
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  • These may either be free living or parasitic in nature.
  • These are heterotrophs and reproduce asexually by binary fission.
  • The Protozoa consists of many unrelated or loosely related organisms.
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  • Trophozoites consists of the proliferative stage in which the protozoa divides and reproduces.
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3 0
8 months ago
complete the flow of deoxygenated blood other parts of the body (a)_____(b)_____tricuspid valve (c)______(d)_______capillary bed
NemiM [27]

Answer:

The correct flow is - the body (a)<u> Venules/vein/vena cava</u> (b) <u>Right atrium</u> tricuspid valve (c) <u>Right ventricle</u> (d)<u> Pulmonary artery, </u>capillary bed of the lungs(alveoli)​

Explanation:

Deoxygenated blood is moved from the tissues to the venules, veins or vena cava to the right atrium chamber and move through the tricuspid valve present in between both right chambers right atrium and right ventricle.

From the right ventricle, the deoxygenated blood is pumped into the pulmonary artery that takes the blood to the lungs more specifically to the capillary bed of lungs.

Thus, the flow is - the body (a)<u> Venules/vein/vena cava</u> (b) <u>Right atrium</u> tricuspid valve (c) <u>Right ventricle</u> (d)<u> Pulmonary artery, </u>capillary bed of the lungs(alveoli)​

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