Examlex
The primary spermatocyte contains only 23 chromosomes.
Ophiolite
A section of the Earth's oceanic crust and the underlying upper mantle that has been uplifted and exposed above sea level.
Oceanic Crust
The part of the Earth's crust that underlies the ocean basins, composed mostly of basalt and thinner than continental crust.
Continental Crust
The relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than oceanic crust.
Thumbs-up
A hand gesture used to express approval, satisfaction, or that everything is okay, often also used in digital communications to signify agreement.
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