The answer is Nuclear envelope.
Basically, the Nuclear envelope is an outer shell that protects the cell (which includes the dna) from any harmful things.
Answer:
What is a. A; A
Explanation:
Drop 1 struck the surface from direction A, and drop 2 struck the surface from direction A.
winds also B. because winds change the air pressure meaning thats the answer
Answer:
Organism - Individual living thing
Community - All of the different populations that live and interact in an area.
Population - Group of similar organisms.
Ecosystem - Community of organisms and its abioitic environment.
Biosphere - All of the ecosystems.
Hope this helps you
Basing on the information given, fermentative metabolism is a type of anaerobic metabolism that does not use oxygen to produce ATP or bioenergy.Thus, this where its name derives from. Thank you for your question. Please don't hesitate to ask in Brainly your queries.