Answer:
An organ is more complex than a tissue
Explanation:
A group of tissues form an organ just like a group of similar cells form a tissue
As far as I know, the adrenal glands, when submitted under pressure such as the one described in the example, secrete a substance known as epinephrine which has the tendency of increasing the affected person's heart rate and breathing.
Answer:

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They began to lose their homes and may die or start moving to colder areas.
Answer:
mushroom is an example of producer
There would be another full
moon on for 27th of september