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pishuonlain [190]
2 years ago
13

Help me plzzz asap... will give brainliest if right

Biology
1 answer:
Colt1911 [192]2 years ago
8 0

Answer:

first option for the first question and second option for the second question.

Explanation:

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Based on the trilobite fossil, what can you infer about the rock layers in these location? Layer a is 500 million years old. Lay
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Answer: Layer a is 500 million years old.

Explanation:

Trilobite is a member of the group of extinct arthropods found as fossils and they can be identified by the three-lobed as well as three segmented forms. These were the marine animals. These were appeared initially in the Cambrian Period. They used to live 542 million years ago so the fossils can be estimated to be aged of 500 above years old. These animals used to dominate in the sea area.

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The answer is vertebrate.

Explanation:

Vertebrates are those animals that have a central spinal cord. Fish, Chicken and rabbit can be classified as vertebrates because they all have a spinal cord. The vertebrate is a big term that is further divided into different classes for example Fish, amphibians, mammals, avian, and reptiles,  

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