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omeli [17]
3 years ago
14

In evolutionary history, the first animals to successfully invade land from the sea were ___________________, an animal with a h

ard outer skeleton and jointed limbs.
Biology
1 answer:
gladu [14]3 years ago
7 0
Arthropods were the first animals to successfully invade land from the sea
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What is the answer?
Darina [25.2K]

Answer:

\boxed {\tt 3}

Explanation:

An element only has <u>one</u> type of atom and cannot be broken down by chemical means.

Let's analyze the answer choices.

1. This has two types of atoms, so it cannot be an element. It has more than one type of atom.

2. This has two types of atoms that are bonded together. It cannot be an element because there is more than one type of atom and the bonds can be broken.

3. This has one type of atoms, so it is an element.  

Therefore the best answer choice is 3.

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A is correct. DNA replication is just a different way of saying Meiosis II.

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