Cat (Australia); lots of cats became feral and they reproduce very fast. They became the apex predator and the native species have no defense system for them, so the cats brought tens of species on the verge of extinction (mainly placental mammals).
Fox (Australia); became an apex predator in the lack of competition, and damages the populations of native small placental mammals.
Hair (Australia); reproduces much quicker than the native species of mammals, increased significantly in numbers, and out competes the native species for the food sources.
African bee (the Americas); much more aggressive and stronger than the native bees and systematically kills their populations.
Grey squirrel (Britain); reproduces quicker than the red squirrel, is bigger, and out competes for food, brought it on the verge of extinction.
Answer: Intoxication caused by a focal C. tetani infection.
Explanation:
The man is likely experiencing intoxication which is caused by a focal C. tetani infection. This is an obligate bacteria whose spores produce the two different types of toxins.
The toxin named tetanolysin can cause the local tissue destruction and tetanospasmin( spasm in muscles)
This was caused due to the careless of the cut that he had from sandals a while ago.
Hence, the problem is tetanospasmic.
Answer:
Bacteria that have obtained the ability to resist the effects of antibiotics. As the diseases caused by these bacteria are hard to treat.
Explanation:
Darwin proposed that evolution is caused by natural selection.
During the industrial revolution caused tons of soot has been deposited in the countryside around industrial areas. The soot discoloured and generally darkened the surfaces of trees and rocks.
In 1848, a dark-coloured moth was first recorded. Today, in some areas, 90% or more of the-peppered moths are dark in colour. More than 70 species of moth in England have undergone a change from light to dark. Similar observations have been made in other industrial nations, including the United States.
Overusing and misusing of antibiotics causes antibiotic resistance. The ability of bacteria to resist the effects of an antibiotic is known as antibiotic resistance.
It occurs because of overuse and misuse of antibiotics over a long period of time. It also occurs if we do not use it as prescribed.
Antibiotics should not be taken every time we feel uncomfortable. We should not save it for next time and should not share it with others. If we overdose ourselves with it we may have serious side effects which can make us feel worse.
Answer:
A
Explanation:
antibiotics are used for bacteria only since viruses are not alive.
Answer:
The first one is correct a rain gauge.
Explanation:
Hope this helps!:)