O- blood, if they have any different blood type they could face serious problems.
Answer:
B. The heart beat and pulse rate may change, but are always equal.
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Answer:
Water!
Explanation:
A stream-lined and slippery body is the characteristic feature of aquatic organisms. The stream-lined body of aquatic animals helps them move easily in water. Possessing a streamlined body reduces resistance when moving whereas a slippery body provide resistance to parasites and also help some animals to breathe through their skin.
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Answer: B. They contain genetic information
Explanation: The role of nucleic acids is to store the genetic information (DNA) and to decode that information into proteins (RNA). DNA is also the form in which genetic information is passed from one generation to the next.
