The rungs of the DNA ladder are made up of four nitrogen bases. There are two purines-adenine and guanine, and two pyrimidines-cytosine and thymine.
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Answer:
least susceptible:
prions
>endospores
>gram-negative bacteria
> gram-positive bacteria
>enveloped virus
Explanation:
Prions:
Are well resistant to ultraviolet radiation that destroys the nucleic acid and inactivates viruses as they lack nucleic acid
Endospores: Could resist most agents that kills the vegetative cells most microbes are formed from.
Gram-negative bacteria: Has higher resistance to antibiotics than Gram-positive due to its outer membrane
The gram positive bacteria: Lack outer membrane and are more susceptible to antibiotics.
Enveloped viruses: Its outer lipid layer of glycoprotein and lipoproteins (envelop) are well neutralized easily
Answer:
there are tanning of skin when exposed to sun over long periods, the formation of callouses on hands in response to repeated contact or pressure, and the ability of certain organisms to absorb nutrients under low oxygen tensions. no duh :D
Explanation:
Answer:
the answer is c. the product of cellular respiration serve as the reactants of photosynthesis
