<u>Antibiotics are used to kill bacteria:</u>
Antibiotic is a naturally produced substance that is used to kill bacteria. The first antibiotic was penicillin produced from fungus. The word antibiotic means against life which means it is against the life of pathogenic bacteria.
In the case of the living organism that is treated antibiotic is ‘pro life’. Antimicrobials are used to kill pathogenic microbes like fungus, bacteria, virus etc. Sometimes the microbes become resistant to the antimicrobials and they are said to develop is antimicrobial resistance.
When pathogens develop antimicrobial resistance newer drugs have to be developed in place of the earlier ones to treat the disease.
Answer: Mutation. The allelic variations that make evolution possible are generated by the process of mutation, but new mutations change gene frequencies very slowly, because mutation rates are low. Assume that the gene allele A1 mutates to allele A2 at a rate m per generation and that at a given time the frequency of A1 is p.
Explanation:
The plasma membrane maintains homeostasis in the cell by keeping cell contents in and foreign material out, and by providing controlled avenues for the transportation of fuel, fluids and waste.
When SA Node triggers Atria goes into Systole !! and when the signal reaches to AV node and from there it goes to Bundle of His making Ventricle to systole or constrict !!
So your answer is Systole !!
hi here is your answer hope it helps or then sry
Explanation:
the importance of oxygen for animals, researchers suspected that a sudden increase in the gas to near-modern levels in the ocean could have spurred the Cambrian explosion.
