Memorize it one word at a time. For example, memorize "the complex" then "the complex assemblage" then "the complex assemblage of transcription". Repeat each part until you have it memorized. This is what helps me memorize definitions so I hope it helps.
A) a polymer. Polymers are large molecules made of small molecules called monomers.
Answer:
Modern amphibians are characterized by the flexibility of their gaseous exchange mechanisms. Amphibian skin is moistened by mucous secretions and is well supplied with blood vessels. It is used for respiration to varying degrees. When lungs are present, carbon dioxide may pass out of the body across the skin, but in some salamanders there are no lungs and all respiratory exchanges occur via the skin. Even in such animals as frogs, it seems that oxygen can be taken up at times by the skin, under water for example. Therefore, regulation of respiration occurs within a single species, and the relative contribution of skin and lungs varies during the life of the animal.
Explanation:
