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Varvara68 [4.7K]
1 year ago
13

What do scientists assume a thin ring indicates when analyzing tree rings?

Biology
1 answer:
Anarel [89]1 year ago
3 0

Answer:

A. a year that was cool or dry

Explanation:

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Parasitic plants though economically harmful to the host plant are not violent killers.justify
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Define autotrophs, heterotrophs, producers, and photoautotrophs.
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Photo autotrophs: organisms that carry out photosynthesis. Using energy from sunlight, carbon dioxide and water are converted into organic materials to be used in cellular functions such as biosynthesis and respiration.
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3 years ago
Which important metabolic compound is produced by skin cells?
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Answer: melanin

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During which era in earth's history were the first insects?
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