Answer: 1
Explanation: We are taking oxygen out of the air to breathe carbon is oxygen!
Name the five layers of epidermis. Which layer is found only in thick skin? Superficial to deep: Stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, stratum basale
If i am not mistaken ,
A
i ) 15 and 21
ii) 10 and 17
iii) 18
iv) 9
B . it plant cell