When an object is in motion, it possesses kinetic energy.
Option b is the only correct answer
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy a body has or possess due to its relative motion.
Some few examples of kinetic energy are as follows:
- Running
- Walking
- Cycling
- Car movement
- Aeroplane flying
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Answer:
In the process, the carbon dioxide bonds with, then breaks with, a lot of molecules of water. These broken water molecules weaken the ice and make it more brittle.
Explanation:
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Answer:
<em>The correct option is A) computer simulation</em>
Explanation:
Models can be described as as a representation of ideas, events or processes. Models might be mathematical, graphical, visual or computer simulations depending on the type of event being represented.
For studying the motion of clods, a computer simulation will be best because it will make it easier to understand the events related to moving clouds during thunderstorms.
An equation, map or graph cannot be used because neither of them can depict the information for motion of clouds in the atmosphere during a thunderstorm.
NONE of these DNA fragments can be completely amplified by using these primer combinations. PCR is a molecular biology technique.
<h3>What is PCR?</h3>
Polymerase chain reaction (PCR) is a technique used in molecular biology to replicate (amplify) a given fragment of DNA.
In this technique (PCR) primers sequences must be used to add nucleotides to the amplified DNA strands during DNA replication.
These nucleotide primers must be sequence complementary to the fragment of DNA desired to be amplified by PCR.
In this case, none of the DNA fragments can be fully generated by using these primers or any of their combinations.
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Answer:
B. secrete granzymes and perforin.
Explanation:
Perforins are the proteins that perforate the plasma membrane of the target cell and lead to bursting of cells due to holes formed in its membrane. Granzymes are the proteolytic enzymes. They serve to stimulate the target cells to kill themselves by the process of apoptosis.
Binding of natural killer cells to their target cells stimulate the release of granules that are filled with perforins or granzymes to kill the target cells.
Likewise, cytotoxic T cells bind to the infected body cells and release the granules filled with perforins or granzymes to kill those infected cells.
