The three observations that could help an individual in distinguising whether the organism is a fish or not is that it should live under water as fish can't survive without water, another thing is that it should laid eggs when it comes to giving birth because when it does not lay eggs but produces a living organism normally without an egg, it is considered to be a mammal and lastly, the appearance it possess such as having gils or fins.
Answer:
because every year there is a new strain of flu
Explanation:
Muscular tissues or cells expand and contract to move the body
Answer:
aftershocks
Explanation:
those come after an earthquake and can last for up to a week after. theyre like small tremors
Heterotrophs is the answer
