Answer:
<h3>I haven't learned economics otherwise in social studies i always help </h3>
After completing a controlled experiment, a scientist changes the dosage of an antibiotic and repeats the experiment. the change in dosage is the <u>independent variable.</u>
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The independent variable is exactly what it sounds like. This is an independent variable and will not be changed by any other variable you are trying to measure. For example, a person's age could be an independent variable.
Antibiotics are a class of antibacterial substances that act against bacteria. It is the main class of antibacterial agents used to combat bacterial infections, and antibiotic drugs are widely used in the treatment and prevention of such infections.
They are It can kill bacteria or inhibit their growth. A limited number of antibiotics also have antiprotozoal activity Antibiotics are ineffective against viruses such as colds and flu. Drugs that suppress viruses are called antivirals or antivirals, not antibiotics.
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That type of blood increased susceptibility to smallpox.
Which of the following best explains why, given the A allele's vulnerability to smallpox, natural selection did not eradicate it?
Diseases that the A type is not vulnerable to can affect other blood types.
Do you think that diseases can impact natural selection in any way?
A species will have a better chance of surviving than others if it has evolved tolerance to particular germs.
Why did people acquire dark skin?
- People who lived in regions with strong sunlight evolved dark skin tones as a result of natural selection to guard against ultraviolet (UV) rays, primarily to prevent their bodies from folate depletion.
- UV rays from the sun are what led to skin pigmentation during evolution.
Learn more about ultraviolet (UV) rays
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Answer:
Democratic President Barack Obama
Explanation:
Democratic President Barack Obama won election to a second term, though the Republican Party retained control of the House of Representatives. Obama defeated Republican nominee Mitt Romney to win a second term, taking 51.1 percent of the popular vote and 332 of the 538 electoral votes.
Answer:
The digital divide
Explanation:
When there is an inequality of access to Information and Communication Technologies (ICT) among different people in a society it is known as a digital divide. In other words it is the gap among individuals or groups in terms of access to ICT.
The digital divide was much higher a decade back but now with mobile phones becoming cheaper the divide is reducing.
