B. carbon
Carbon is a key element found in all carbohydrates, lipids, proteins and nucleic acids
Answer: Bacteria likely cause less disruption to the natural environment.
Explanation:
Skin is a barrier that serves as one of the body's first lines of defense against harmful microbes. Specialized immune cells within skin tissue help to fight invading organisms. Past work by an NIH research team showed that commensals can help the body's immune cells fight disease-causing microbes.
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Answer:
C- Law of Superposition
Explanation:
The Law of Superposition states that it is logical for older species (for example fossils or rock materials) to support the weight of younger species. This implies that the older species will be at the bottom while the younger will be at the top. Conversely, we can say that the younger species is superimposed on the older ones.
So Layer D is younger than Layer C because D comes after C in the alphabet.
