Cancer has been apart of history for a long time
The answer to the question is b
<span>Compact bone is the external or outer layer of a bone that gives bone tissue a "hard-like" feel, while a spongy bone is the inner bone. Spongy bone is porous and sits underneath the compact bone. If spongy bone does not receive ample calcium nutrients, it is most vulnerable to breakage.
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Answer:
The endosymbiotic event that brought chloroplast in eukaryotic cells happened after the lineage delivered.
Explanation:
The endosymbiotic theory says that the ancestral cell gains the ability of photosynthesis when it engulfed a photosynthetic bacteria and this bacteria remained in a symbiotic relationship with the ancestral cell and evolved as chloroplast in plants that can perform photosynthesis.
All the eukaryotes do not have this internal structure like chloroplast because this endosymbiotic event must be happened after the divergence of the lineage into different groups. Therefore plant cells have chloroplast and animals cell do not have.
