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Svetach [21]
3 years ago
7

HELP!! "During the ______ period, the first vertebrates appeared on Earth"

Biology
2 answers:
Effectus [21]3 years ago
7 0

Answer:a

Explanation:Vertebrates originated about 525 million years ago during the Cambrian explosion, which saw the rise in organism diversity. The earliest known vertebrate is believed to be the Myllokunmingia.[

Colt1911 [192]3 years ago
3 0
You’re answer is A- Cambrian
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What type of statement would the following be considered? "I'm not a Math person because I'm not smart enough."
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anyanavicka [17]
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6 0
3 years ago
How do pioneer species make ecological succession possible on an island formed from a volcanic eruptions
SIZIF [17.4K]

Answer:

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On the other hand, if after a disaster some of the organic matter remains on the land, then the succession that will occur will be termed as secondary succession. E.g a succession after fire

In primary succession, the pioneer species will be plants that require less soil such as the lichens. The lichens will break down the rocks into the soil and eventually new species of plants will start to grow on the land.

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