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In-s [12.5K]
2 years ago
13

Volcanic ash and sulfur dioxide spewed out of Mt. Pinatubo in 1991. These materials can reflect incoming solar radiation. Over t

he next few years, what do you think happened?
Biology
1 answer:
Ann [662]2 years ago
7 0
First local vegetation would die due to lack of sunlight, therefore lack of photosynthesis to support themselves. Then many of the animals and organisms would die due to lack of food source, and the remaining would migrate to places with similar climate and with an abundance of food.
You might be interested in
What is the volume of the rectangular prism?
Sergeu [11.5K]

Answer:

270cm³

Explanation:

Volume of the rectangular prism: length * width * height.

In this case: 6cm * 9cm * 5cm

3 0
3 years ago
In which stage of cell division is the dna copied?
Tcecarenko [31]
Mitosis in the stage prophase chromosome and DNA is copied
8 0
3 years ago
A body cell has been growing and synthesizing proteins. In the nucleus of this body cell, DNA replication is taking place, and a
goblinko [34]

The best conclusion you can make about the life cycle of this cell is that the cell is in the S phase of interphase and will move next to the G2 phase.

S phase (Synthesis Phase) is the phase of the cell cycle in which all of the chromosomes (DNA) are replicated within the nucleus. During this phase, the DNA is effectively doubled as each chromosome contains two sister chromatids. After the S phase, the cell enters the G2 phase where various proteins (such as microtubules) are synthesized.

4 0
2 years ago
Why can't prokaryotic species be defined as a group of similar organisms that could sexually reproduce together?
s344n2d4d5 [400]

Answer:

The prokaryote divides by asexual mode of reproduction.

Explanation:

The concept of species which defines a species as a group of individuals of a population which can interbred and produce a fertile progeny is applicable to the organism which can reproduce sexually.

Since the bacteria divide through asexual means and not through sexual ways therefore the concept of defining a species becomes complicated and does not apply.However the concept of species in prokaryotes is still a topic of research.  

Thus, the biological concept of species is not applicable to prokaryotes.

6 0
3 years ago
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
3 years ago
Read 2 more answers
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