Variations are important to natural selection because if every species was the same and natural selection did not like them that whole species would go extinct, if there is a variety of that species it will serve because natural selection will only take out the type of that species it does not like, for example sharks! There are many types of sharks. If all sharks where put into fresh water and they where all the same type they would all die but since there is a variety the sharks that can live in fresh water live and the ones that don’t die.
Answer:
Hydrosphere and Biosphere
Explanation:
Answer:
DNA
a. deoxyribonucleic acid
b. adenine, guanine, cytosine, thymine
c. deoxyribose
d. polynucleotide chain
e. mostly double stranded
f. carries genetic information
RNA
a. ribonucleic acid
b. adenine, guanine, cytosine, uracil
c. ribose
d. polynucleotide chain
e. mostly single stranded
f. responsible for coding, decoding, regulation, and expression of genes
A Fault or B is the correct answer, faults are when Earth's crust is ruptured or cracken deep below the surface in the crust.
Bacterial cells are easy to grow, maintain, and manipulate in a lab which make it easy to use in recombinant DNA tech.