Answer:
Electron
Explanation:
The electron is subatomic particle that revolve around outside the nucleus and has negligible mass. It has a negative charge.
Symbol= e-
Mass= 9.10938356×10-31 Kg
It was discovered by j. j. Thomson in 1897 during the study of cathode ray properties.
He constructed the glass tube and create vacuum in it. He applied electric current between electrodes. He noticed that a ray of particles coming from cathode to wards positively charged anode. This ray was cathode ray.
Properties of cathode ray:
The ray is travel in straight line.
The cathode ray is independent of composition of cathode.
When electric field is applied cathode ray is deflected towards the positively charged plate.
Hence it was consist of negatively charged particles.
While neutron and proton are present inside the nucleus. Proton has positive charge while neutron is electrically neutral. Proton is discovered by Rutherford while neutron is discovered by James Chadwick in 1932.
Symbol of proton= P+
Symbol of neutron= n0
Mass of proton=1.672623×10-27 Kg
Mass of neutron=1.674929×10-27 Kg
The cell wall of <em>Mycobacterium </em>is accountable for its slow growth, being <em />strongly impermeable to nutrients, and for its compact, wrinkled appearance in colony morphology. Most nutrients are hydrophobic such as certain fats and vitamins as well as some form of carbohydrates and proteins. Since the cell wall is hydrophobic, nutrient absorption of <em>Mycobacterium</em> is slow hence growth of the organism is also slow. A wrinkled colony appearance is also characteristic of microorganisms with hydrophobic cell walls.
On the other hand, while <em>Mycobacterium</em> is an aerobic organism; the hydrophobicity of the cell wall do not account for this characteristic of the organism.
the opposite of supination nation is: pronation
Answer:
Animal behavior includes all the ways animals interact with other organisms and the physical environment. ... Behavior is shaped by natural selection. Many behaviors directly increase an organism's fitness, that is, they help it survive and reproduce.
Dna polymerase can help prevent errors
