Answer:
The independent variable are the vitamins .
The dependent variable are the rats.
Explanation:
The vitamins are the independent variable because they are are controllable. You can control how many vitamins the rats will be given.
Answer: Decomposers is an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Explanation:
Answer:
In secondary succession, a previously occupied area is re-colonized following a disturbance that kills much or all of its community. A classic example of secondary succession occurs in oak and hickory forests cleared by wildfire. Wildfires will burn most vegetation and kill animals unable to flee the area.
Answer:
What has a head and a tail but no body?
You can hold it without using your hands or your arms. What is it?
Explanation:
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