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denis23 [38]
3 years ago
14

Enzyme found in retroviruses that produce dna from an rna template. True or False

Biology
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

<h2>True</h2>

Explanation:

1 .Reverse transcriptase (RT) is an RNA-dependent DNA polymerase enzyme which makes DNA from RNA..  

2. RT makes double-stranded DNA molecules from ssRNA ( single stranded RNA) molecule using it as a template.

3. Retroviruses like  HIV contain Reverse transcpritase (RT) enzyme, which uses the RNA molecule as template and make DNA from it and after that, virus make multiple copies of itself.

4. Reverse transcriptase enzyme make DNA reverse transcrptionally from RNA the process known as RNA dependent DNA polymerase.

5. It was  first discovered in retroviruses.

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The only competitors that humans have for food are other humans and insects <br> Agree or disagree ?
konstantin123 [22]

The only competitors that humans have for food are other humans and insects: Agree; we do compete with other animals for food

<u>Explanation:</u>

The term competitor is used to describe interaction that takes place within any two organisms as a result of which both the organisms are affected. The functional role that an organism have within the environment is known as Niche.

Parasitism refers to the interaction that takes place between any two organisms or species as a result of which only one will get benefits and the other one will be getting affected.In an ecosystem, every organism strives hard for living and need food for its survival. Hence, the competitors for food in an ecosystem will be other human, insects, animals, etc.

5 0
2 years ago
All the following are true of the movement of Earth's atmosphere except :
zheka24 [161]

Answer:

All  are true of the movement of Earth's atmosphere except :

d. Warm air is less dense than cool air so it tends to sink towards the Earth's Surface.

Explanation:

  • When gases heat up, their volume increases and  density decrease.
  • A decrease in density causes a substance to become lighter.
  • Thus, when air warms up due to heat from the sun its density decreases and it gets lighter.
  • So, it will move up.
  • The Cooler air in turn is denser and heavier so it will sink towards the Earth's surface.
  • Hence, the statement d , which states that 'warm air is less dense than cool air so in tends to sink towards the Earth's Surface' is FALSE.
5 0
3 years ago
If scientists are wrong about Earth's age based on radioactive material and the decay rates are really much faster, how would nu
kupik [55]

Nuclear power plants use the energy originating from the splitting or uranium atoms to produce steam, which in turn drives a turbine generator.

The main problem with this form of energy production is the byproduct from the nuclear reactors known as radioactive waste. Although it is no longer efficient for the energy production, this waste is still radiating large amounts of heat and radiation. Thus, they are very hazardous as they are fatal on direct exposure and can contaminate the environment.

Due to the extremely long half-life, long term storage for this waste is extremely problematic.  However, if the decay rates were much faster, then the half-life would also be much shorter. Thus, short term storage solutions could be found.

Excepting the nuclear waste and the potential accidents (which are minimized in modern plants), nuclear energy does not immediately affect the climate on earth. With short half-lives, nuclear energy would perhaps become more popular than solar or wind energy as it is more reliable and efficient.

5 0
3 years ago
37) Most of Oxygen resource is from
MA_775_DIABLO [31]

\large\pink{\mid{\underline{\overline{\tt { →\:OCEAN}\mid}}}}

  • Scientists estimate that 50-80% of the oxygen production on Earth comes from the ocean.

\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}

\sf{\:мѕнαcкεя\: ♪...}

4 0
2 years ago
Read 2 more answers
Which of the following pairs is not correctly matched?
Elden [556K]

Answer:

B

Explanation:

T tubules do not generate ATPs. This is done by mitochondria. T tubules are the invagination of cell membranes into the muscle cells. They allow for rapid actuation of the action  potential by the muscle cells. They do this by synchronizing the release of calcium ions that are important in muscle contraction.

7 0
3 years ago
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