Answer:
By the amount of silica
cause igneous rock is classified by their color, texture and chemical composition
Latitudinal gradients of biodiversity are biogeographic patterns that quantify the ways in which taxonomic, phylogenetic, functional, genetic, or phenetic biodiversity change with latitudinal position on the surface of the earth.
Abiotic factors are non living things, such as non living things. A terrain can either help or not help a certain organism.
Answer:
To store the cells DNA
Explanation:
Maintain it's integrity and facilitate it's transcription and replication