A virus that remains inactive for a time is said to be lysogenic.
viruses
toxin is inactive: In bacteria, the toxin is present in an inactive form, called prototoxin, which gets converted into active form when it enters the body of an insect
When viral DNA enters into an inactive prophage state in a cell
the frequency remains the same as sound enters in water, actually speed of sound increases 3 times when it enters in the water. Jayant Sagar
The streak of light created by a meteoroid entering the Earth's atmosphere is called a meteor. A meteorite is the remains of a meteoroid that did not vaporize after entering the Earth's atmosphere.
When sound enters another medium such as a wall, the frequency or pitch of the sound remains constant. The velocity or speed of sound may change depending on the properties of the medium, but the frequency remains the same.
1.5 ltrs
About 1 liter
The mouth
yes it can
Vaccine This is any solution that is prepared to cause immunity against a specific disease, usually employing a non-harmful form of the disease agent (the virus or bacteria), as killed or weakened (inactive) to stimulate antibody production.
Ice remains at zero degrees C for a long time because all of the heat energy that enters the ice goes into MELTING it, and not into increasing the temperature. Once all the ice is melted, then any more heat energy that enters the system will begin to raise the temperature.