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Mariana [72]
2 years ago
14

Which statement is true about pandemics and endemics?

Biology
2 answers:
adelina 88 [10]2 years ago
8 0
Its B, an epidemic can escalate to a pandemic
iren2701 [21]2 years ago
5 0
I think the correct answer is B
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For Dalmatian dogs the spotted condition (D) is dominant to the non-spotted condition (d). What are the results of a cross betwe
Svetradugi [14.3K]

If two heterozygous individuals are crossed, the results of the cross are as follows:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

<h3>What is an Heterozygous Cross:</h3>

According to this question, the gene coding for spotted condition. The allele for spotted condition (S) is dominant over the non-spotted condition (s).

If two heterozygous Dalmatian dogs are crossed i.e. Ss × Ss, the allele combination for each gamete is as follows:

  • Ss - S and s
  • Ss - S and s

The following offsprings will be produced:

  • SS - spotted condition
  • 2 Ss - Spotted condition
  • ss - non-spotted condition

Learn more about heterozygous cross at: brainly.com/question/13050360

7 0
2 years ago
Which parts of the membrane would help a large carbohydrate molecule
nata0808 [166]
C. Globular proteins
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3 years ago
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How is HIV contracted, and what are the treatment options?
Katena32 [7]

I believe the correct answer is: HIV is spread during unprotected sex or through contact with infected blood; it cannot be cured, but early treatment can minimize the long-term consequences.

<h2>Explanation:</h2>

Human Immunodeficiency Virus is a type of virus which causes an impairment of the immune system of the person making them susceptible to diseases such as tuberculosis, influenza and any other disease that can exploit this opportunity. It is spread by a person coming into direct contact with infected bodily fluids such as saliva during deep kissing, semen during intercourse, blood after an accident or even fluids when sharing needles and syringes for drug addicts. There is no cure but the current form of treatment slows down the virus to prevent some consequences.

<h2>Further Explanation:</h2>

The virus is enters the body through open wounds or surfaces such as the vagina or mouth where the skin is very thin and can tear. After penetrating the skin, it attaches to specific immune cells called CD8+ T-cells on points called receptors. It then enters the cell and replicates itself in the nucleus of the cell and as it goes out, it kills these immune cells making the person to have a weak immune system. The current drugs used called AntiRetroVirals (ARVs) such as the drug Zidovudin stops the virus from replicating thus reducing the total amount of virus in the body called the Viral Load. Some drugs target enzymes called proteases and reverse transcriptase that help the virus to replicate. This viral load is what is counted to estimate the total volume of HIV someone has in their body. Infected persons should use protection while having sex and also avoid sharing sharp objects to prevent transmission. They also need to take their medication to make them much more healthier in addition to taking proper balanced diets.

Level: High School

Subject: Biology

Topic: The Immune System

4 0
2 years ago
Read 2 more answers
T or F?????? a heat engine is a device that converts the heat that flows from a warmer object to a cooler object into work
liberstina [14]

Answer:

the answer is true your welcome

3 0
2 years ago
A fruit fly egg has 5 chromosomes, how many are in a skin cells?
xxTIMURxx [149]

Answer:

Skin cell has 10 chromosomes.

Sperm cell has 5 chromosomes.

egg cells has 5 chromosomes.

Explanation:

If the fruit fly egg has 5 chromosomes, then the skin has 10 chromosomes because skin has diploid i. e. double number of chromosome. There is always haploid or half number of chromosome present in the sex cells such as sperm and egg cells of any organism. When the sperm and egg cells fuse together they formed the organism which is a diploid i. e. double number of chromosome.

6 0
3 years ago
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