Answer:
c.malaria
Explanation:
Malaria is a serious and sometimes fatal disease caused by a parasite that commonly infects a certain type of mosquito which feeds on humans. People who get malaria are typically very sick with high fevers, shaking chills, and flu-like illness. Four kinds of malaria parasites infect humans: Plasmodium falciparum, P.
Answer:
Proxima Centauri
Explanation:
Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.
Answer:
B
Explanation:
The rate of mutations on the S. Aureus population increased when exposed to antibiotics over time. This gave rise to a few mutants of the bacteria that could survive the methicillin antibiotic. This is because the mutation altered a protein target of methicilin (beta-lactam binding proteins) on which the antibiotic acted upon. These populations increased as the others were eliminated by the antibiotic – the way natural selection works. Over time, these mutations were transferred to other populations of bacteria by these MRSA through ‘sexual’ horizontal gene transfer, causing whole bacteria populations to be resistant against methicilin.
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Answer: As we know that the digest excess or worn out organelles, food particles, and engulfed viruses as well as bacteria. The membrane surrounding a lysosome prevents the digestive enzymes inside from destroying the cell. So, lysosomes fuse with vacuoles and dispense their enzymes into the vacuoles, digesting their contents.
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Answer:
(A) a red brick reflects red light and absorbs blue and green light
