As you are comparing plant cells to animal cells, the answer could be a combination of the following:
Cell wall/chloroplasts/plastids/central vacuole are found only in plant cells, but the Golgi body/ mitochondrion/nucleus/cytoplasm/plasma membrane/rough and smooth ER (endoplasmic reticulum)/ribosomes are found in both plant and animal cells.
What the answer is perhaps depends on the context of the question.
I hope you can use this to your benefit!
<span>A tiger looks so much different as an adult than it did as a single fertilized egg because it developed through different stages from being a zygote (fertilized egg), to becoming an embryo (where it experiences intense cellular changes), to becoming a fetus (where it gains a great measure of cell specialization, and develops distinct tissues and organ systems). After birth, the tiger still undergoes further growth and development into adulthood. This is largely regulated by the expression of different genes at different times and also by environmental factors.</span>
I believe the answer you are seeking is feedback loop
Answer:
While Copernicus rightly observed that the planets revolve around the Sun, it was Kepler who correctly defined their orbits. At the age of 27, Kepler became the assistant of a wealthy astronomer, Tycho Brahe, who asked him to define the orbit of Mars. Brahe had collected a lifetime of astronomical observations, which, on his death, passed into Kepler’s hands. (Brahe, who had his own Earth-centered model of the Universe, withheld the bulk of his observations from Kepler at least in part because he did not want Kepler to use them to prove Copernican theory correct.) Using these observations, Kepler found that the orbits of the planets followed three laws.