Answer:They are all controlled by the human beings.
Explanation:
The selective breeding, cloning and genetic engineering are some of the techniques which is induced by the human efforts.
In case of selective breeding the male and female species having the selective characters are mated with each other so that the offspring produced has the desired characters. It neither requires any enzyme nor uses udder cells.
In case of genetic engineering, the gene of interest is inserted in the bacterial species by the help of vector so that when the bacterial species amplify the gene of interest. This is how the desired products are produced by bacterial species. Example: Insulin production.
Cloning can be defined as another technique made by human beings in which the genetically identical species is made naturally or artificially for the benefit of the mankind.
Therefore salt can be dissolved in water as the water acts as a solvent to the salt that is the solute so it dissolves
hope that helps
Answer:
Explanation:
An atom consist of electron, protons and neutrons. Protons and neutrons are present with in nucleus while the electrons are present out side the nucleus.
All these three subatomic particles construct an atom. A neutral atom have equal number of proton and electron. In other words we can say that negative and positive charges are equal in magnitude and cancel the each other. For example if neutral atom has 6 protons than it must have 6 electrons. The sum of neutrons and protons is the mass number of an atom while the number of protons are number of electrons is the atomic number of an atom.
Isotopic notation: Protons Neutrons Electrons
¹⁹⁷₇₉Au 79 118 79
Solution:
p+n = atomic mass = 79+118 = 197
e = 79 (atomic number) so the element with atomic number Au.
Isotopic notation: Protons Neutrons Electrons
⁷⁹₃₅Br 35 44 35
Solution:
Number of neutrons = atomic mass - number of protons= 79-35 = 44
Number of protons and electrons are equal so number of electrons are 35.
Isotopic notation: Protons Neutrons Electrons
¹²⁷₅₃I 53 74 53
Solution:
The atomic number of iodine is 53.
Number of neutrons = atomic mass - number of protons= 127-53 = 74
Number of protons and electrons are equal so number of electrons are 53.
Isotopic notation: Protons Neutrons Electrons
⁵⁶₂₆Fe 26 30 26
Solution:
The atomic number of iron is 26.
atomic mass = n+p= 26+30= 56
Number of protons and electrons are equal so number of electrons are 26.
