B, a nucleus. Nuclei are membrane-bound organelles inside eukaryotic organisms. Eukaryotes are protists, fungi, plants, and animal cells. A bacteria is not a eukaryote, it is a prokaryote, so it does not have the membrane-bound structure of the nucleus.
Be careful, though, bacteria still have DNA. It is simply located in the center of the cell and is not encased in a membrane.
Answer:
D- Iron
~+lil more info!+~
Iron is the ultimate nuclear “ash,” from which no nuclear energy can be extracted.
Answer:
amylase
Any of a class of digestive enzymes, present in saliva, that break down complex carbohydrates such as starch into simpler sugars such as glucose.
Answer:
Has to be tested and verified
Explanation:
The experimental protocol describes and determines materials, equipment, and procedures.