Answer:
A.the flow of energy between organisms in an ecosystem
Please mark brainliest
Answer
The answer for first fill in the blank is “ positive”
The answer for second fill in the blank is negative
The answer to the question above is a cell.
Answer:
The modern medical era began when an absent-minded British scientist named Alexander Fleming returned from vacation to find that one of the petri dishes he forgot to put away was covered in a bacteria-killing mold. He had discovered penicillin, the world's first antibiotic.
The mitosis or the mitochondria
