You're flying in a plane and the seatbelt sign is turned off, You're in Stratosphere
This happen when you usually entered 16km in height. Up to this point, it would be safe to use wireless communication device.
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Answer:
a. Light moths on light trees.
d. Dark moths on dark trees.
Explanation:
The clear coloration of the moths allows them to mimic in the light trunks that can be of this color or covered with light lichens. Likewise, dark moths mimetize in dark trees, which can be of this color naturally or a cause of the industrial revolution and contamination with hollin. The mimicry allows them to camouflage themselves from theirs predators.
The organisms that is most likely not functioning as a keystone species in its ecosystem is; the Zebra mussels-Compete with native species, reducing the biodiversity of the Great Lakes ecosystem. Keystone species are plants or animals that play unique and vital role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether.
Answer:
The last one
Explanation:
All other substances use their chemical name, not a generic name like the last one