No the mass of the producers is smaller than the mass of primary consumers,after that level the biomass of each trophic level decreases steadily.
got it off of a quizlet for u shawty
The greatest advantage of using DNA technology to produce medicines has been that B. medicine can be distributed at a reduced cost. The medicine becomes easier to produce due to DNA technology. One may consider insulin as an example of this, which had to be extracted from the blood from animals before it could be produced using DNA technology.
Step 1. Simplify brackets

Step 2. Simplify
13
Done! :)
Your answer is A. 13 Hope this helps!
I think answer might be d.
Explanation:
heat (metal or glass) and allow it to cool slowly, in order to remove internal stresses and toughen it.
OR
recombine (DNA) in the double-stranded form following separation by heat.