20% of the Earths crust is made up of non-silicate minerals
Answer:c
Explanation:
Thymine is found in dna only and its replaced with uracil in RNA
A.
Population density is the total number of organisms of a specie in a particular/fixed area; 150 bees in a 150 meter/square... it's density is arguably 1 bee to one meter/square.
Answer:
B
Explanation:
I personal will go with B cause viruses attack your immune system then destroy healthy cells then copy it self through out the rest of the body.
