The answer is C because the independent variable is what you change in the experiment and you are changing the concentration of sugar
Yes, protists have cell walls.
Protists cell walls are made of composed cellulose, protein strips , and silica
For some protists, we can even found components like pectin on the cell walls
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The answer is Permian-Triassic extinction.
The Permian-Triassic extinction was 252 million years ago. It is known as The Great Dying because about 95% of all species died out due to environmental changes (volcanic eruptions, dry climate, melting of ice sheets, etc). This is also the only event in which many insect species wiped out.
Answer:
D. Columnar
Explanation:
Hint the root word is in the option and it is actually shaped like a column according to Epithelium - Wikipedia
Hope this helps : )
