Keratin is an intracellular fibrous protein that gives hair, nails, and skin their hardness, strength, and water-resistant properties. The keratinocytes in the stratum corneum are dead and regularly slough away, being replaced by cells from the deeper layers
Hope this helped!
Good luck :p
~Emmy <3
Answer: You picked the correct answer, "They all inherited their traits from a common ancestor."
Explanation: Well, one I had a test on this question too and I got it right. Second, if all species shown have something in common (structures) than they most likely got it from a common ancestor.
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
The correct answer is
C. Mutation during reduction division
Answer:
Solar and geothermal energy are both considered renewable energy sources. ... Nuclear energy produces nuclear waste, while solar and geothermal energy do not produce a significant amount of waste.
