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Arturiano [62]
2 years ago
8

Which of the following has a primary role in attacking cancer cells and protecting against some pathogens by killing harmful cel

ls on contact
Biology
2 answers:
Oliga [24]2 years ago
7 0
B memory cells is very wrong. The answer could be Cytotoxic T cell or natural killer cell
jolli1 [7]2 years ago
4 0
The answer is memory B cell
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Continental drift states that continents moved ____ to their current location
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<h3>Slowly</h3>

Wegener proposed the hypothesis of continental drift, which suggested that continents are in constant motion on the surface of Earth. Over time Pangaea began breaking apart, and the continents slowly moved to their present positions.

<h3>What is Continental Drift ?</h3>

The theory of continental drift is most associated with the scientist Alfred Wegener.

  • Wegener's continental drift theory introduced the idea of moving continents to geoscience. He proposed that Earth (opens in new tab) must have once been a single supercontinent before breaking up to form several different continents.

  • The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.

Learn more about Continental Drift here:

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