Answer: Option (A) and (D) are correct.
Explanation:
Atomic number means the number of protons holded by an atom. On the other hand, atomic mass means the sum of total number of protons and neutrons holded by an atom.
For example, in an isotope of oxygen as oxygen-15 with an atomic number 8 means that there are 8 protons.
So, number of neutrons present in oxygen-15 will be as follows.
Atomic mass = no. of protons + no. of neutrons
15 = 8 + no. of neutrons
no. of neutrons = 15 - 8 = 7
Hence, this isotope of oxygen atom has 8 protons and 7 neutrons.
Answer:
mutation
Explanation:
A mutation is a change that occurs in copying a DNA sequence where the order of the proteins could be altered.
The most appropriate lighting for a reptile enclosure which ensure ultraviolet -B exposure. Reptiles depend upon skin manufactured vitamin D3 and has no capability to use the vitamin D3 which is available in the food they eat.For these reason reptile must bask in the sun or the UVB emitting bulb which help to maintain vitamin D3.
I will give you a website that has a chart on it
Good u hope ur Sunday is going well