<span>The respiratory system, circulatory system, muscular system, and nervous system.
Hope this helps!:)</span>
Observation is a factual statement that cannot be changed or replaced.
Explanation)
Hypothesis is a tentative statement that can be tested.
Scientific law and theory are considered a fact but can be disproven if new evidence emerges.
Asexual reproduction produces genetically similar or same offspring whereas sexual reproduction [produces genetically varied offspring.
I guess ribosomes are not present in leaf cells
The answer is C hope this helps!