The answer is stem. i just had this question on odyssey.
b. phosphate. The polar head of a phospholipid is negatively charged and is made up of phosphate molecules. This polar head region attracts water (hydrophilic) and is positioned outward to interact with water.
Answer:
Biotic Factors are living things
and Abiotic Factors are non- living
Explanation:
<span>
Thin skin contains four layer(s) of keratinocytes, and thick skin contains five layers.
-4,5
-Hope this helps</span>