Answer:
A verb can be described as transitive or intransitive based on whether it requires an object to express a complete thought or not. A transitive verb is one that only makes sense if it exerts its action on an object. An intransitive verb will make sense without one. Some verbs may be used both ways.
Explanation:
Answer: "pheromones" .
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<u>Note</u>: "Odorless chemicals" that serve as "signals" to members of one's own species are called: <u> pheromones </u><u /> .
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Answer:
A facts only; not opinions, like in B
Explanation:
use facts