D, all of these. (this is to reach the word limit on answers ignore it)
Answer:
S. aureus strain is less infectious, but its alpha-toxin is highly-toxic.
Explanation:
Given data:
LD50 for S. aureus alpha toxin 0.45 \mu g/kg
ID50 for same mouse density found to be 200,000
From the data information given above Staphylococcus aureus was done on mice. The result show that LD50 is found to be 0.45\mu g/kg and ID50 found to be 200,000 on same mouse population
the result taken together mean that S. aureus strain is less infectious, but its alpha-toxin is highly-toxic.
Answer:
Beta rays are electrons.
Explanation:
A neutron in the nucleus of a radioactive atom decays into a proton and an electron, which is emitted from the atom.
Answer: The bond between them is covalent bond.
Explanation: There are 2 types of bonds present:
1. Covalent bond: This bond is present when there is sharing of electrons between two elements. This bond is prominent in the bonding of two non-metals.
2. Ionic bond: This type of bond is formed when there is a complete transfer of electrons from one element to another element. In this bonding one element is always a metal and another is a non-metal.
We are given that a carbon atom is forming two bonds with hydrogen and rest two with carbon atoms. Carbon and hydrogen both are non-metals and hence, the bonds between them will be purely covalent in nature.
So, the bond between two carbon atoms is covalent bond.
1 mole= 602,200,000,000,000,000,000,000 its just this huge number! =6.022 x 10 to the power of 23. So that's it I guess!
