The charge by the nucleus of a atom has a negative charge.
Linnaeus. Carolus Linnnaeus is a Swedish naturalist whose lasting achievement is binomial nomenclature; it is a system of naming and classifying plants and animals according to genus and species.
Answer: False
Explanation:
Protozoans are not the organism that fix nitrogen for the plants. The organism that fix nitrogen to convert it into a form which can be used by plants are known as diazotrophs.
These are bacteria and archae that fix nitrogen gas found in the atmosphere into more usable form such as ammonia.
These organism can grow without any external source of fixed nitrogen. Example: Rhizobia and azospirillium.
B, C, D
A is r-selected species
