The repeating stages a cell experiences, including cell division, compose the cell cycle, it is a sequence of events that lead first to the growth of the cell and later to the division into daughter cells. The cell cycle begins at the moment when a new cell appears, descended from another cell that has been divided, and ends at the moment when said cell, by subsequent division, originates new daughter cells.
<span>A group of similar cells performing similar functions is called a "Tissue"
In short, Your Answer would be Option D
Hope this helps!</span>
In photosynthesis, a thylakoid is a sac located in a chloroplast which absorbs light in the form of photons through proteins called Photosystems I and II and cytochrome complexes and uses it to harvest ATP. All of this occurs during the light reaction step of photosynthesis on the membranes of the thylakoids.
Endosymbiosis is the idea that certain organelles found in eukaryotic cells today, like mitochondria and chloroplasts were originally separate organisms which were absorbed into early eukaryotic cells and had a symbiotic relationship with them. Over time, they evolved along with the cells until they were fully part of the cell and no longer self-sufficient organisms.
The best piece of evidence for this theory is that chloroplasts and mitochondria have their own DNA, which is different than the DNA stored in the nucleus. This makes sense since they would have needed their own genetic material when they were independent organisms. Today, though, much of the genetic code controlling mitochondria and chloroplast production and activity has been incorporated