Answer: D
Explanation: just because it's D.
Answer: the root is not a referred to as a layer of the hair
Explanation: Medulla, Cortex, and cuticle are 100% layers but the root doesn’t seem to be one
Answer:
A factor that is purposely left the same.
Explanation:
A controlled variable should not be changed throughout an experiment or else it will affect the outcome of each individual trial.
For the desalination of salt water a draw back is that it's more costly than fresh water
Answer:
e) Arginine
Explanation:
The Urea Cycle -
Urea cycle also called the TCA cycle , takes place in the ureotelic organisms . It is the cycle of biochemical reactions which helps in the production of urea from ammonia .
The highly toxic ammonia produced is excreted out of the organism's body .
Now, in one of the biochemical reaction , an amino acid arginine is used and helps for the production of urea and ornithine as the products and this step occurs in the cytosol of the cell .
