Answer:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons.
Explanation:
An element is a substance that is made entirely from one type of atom. ... A compound is a substance made from two or more different elements that have been chemically joined.
Polyallelism.
Poly means many. So, when there are more than two alleles for the same gene locus we call it of polyallelism. This makes genetic variability much bigger because there are several alleles for a possible location in a chromosome and this would make, for example, from two parents a possible combination of two out of four possible alleles if between them they had all different alleles.
Answer:
The correct answer is - the long evolution of discoveries and invention leads us to modern microbiology and with all of these inventions we are able to study and control microflora to this extent,
Explanation:
Microbiology is a very vast subject and is developed over a long period since the invention of the microscope took place we are able to find different microbes that cause disease or can help in understand and study the microbes.
Antony Van Leeuwenhoek - developed microscopes and called microbes animucules
Louis Pasteur (1822-1895) - fermentation, disapproved of spontaneous generation, killing bacteria with heat or pasteurization.
Edward Jenner (1749-1823) - variolation and father of immunology
Robert Koch (1843-1910) - find out the bacteria and demonstrarted the role of disinfectant, father of microbiology.