The principle of defense-in-depth<span> is that layered security mechanisms increase security of the </span>system<span> as a whole. </span>
Shells are the exoskeletons of clams, snails and oysters. Hope that helps
Answer:
Household biology is the study of household animals,insects,etc.,including how to prevent damage to our own body and to our belongings
<span>hybridization can be used to produce plants giving a high yield by breeding an indigenous variety of the plant having disease and pest resistant qualities and also a greater adaptability to the particular environment with a high yielding exotic variety to get an offspring having the desired qualities of both and also promoting hybrid </span>
