Its the first layer of protection in the atmosphere against radiation from the sun and its harmful U.V. rays.
The earliest modern humans in Australia, dating to 50 - 40,000 yBP, were found at Lake Mungo. Early modern humans moved into North and South America because of population increase, competition for food and climate change. Modern humans likely migrated to the Americas via walking across the Being land bridge.
Answer: Epithelial Tissue Learn with flashcards, games, and more — for free. ... The apical surface may have either microvilli or cilia. ... Epithelial tissues protect both external and internal surfaces from dehydration, abrasion, and destruction by ... pseudostratified (sū′dō-strat′i-fīd; pseudo = false, stratum = layer) epithelium.
Explanation: I hope this helps UwU
It would help if you had question or attached an image.
D. Genes. They have genetic material that determine our characteristics.
