<span>a.) oyster
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Answer:

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.
To answer this we would the answer choices.
Gene drives is a powerful genetic engineering technology that may help to eradicate diseases transmitted by mosquitoes but it may also be harmful and cause the extinction of natural populations.
<h3>What are Gene drives?</h3>
Gene drives refer to a genetic engineering strategy based on genome editing (e.g., CRISPR-Cas9) that allows to produce a bias in the inheritance patterns of natural populations.
Gene drives modify normal inheritance to increase the selection coefficient of genetically engineered individuals, which may result in an advantage to control a vector population.
In conclusion, gene drives is a powerful genetic engineering technology that may help to eradicate diseases transmitted by mosquitoes but it may also be harmful and cause the extinction of natural populations.
Learn more about genetic engineering benefits here:
brainly.com/question/1548948
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