Chloroplasts;
These contain grana, the site of the light-dependent reaction of photosynthesis, and stroma, a fluid substance that is the equivalent of cytoplasm in cells, which is the site of the light-independent reaction of photosynthesis. Grana are structures made of stacked thylakoid membranes, necessary for chemiosmosis, connected to one another by lamellae.
The most important trait that modern fish had developed was the transformation of their skeleton from cartilage to bones. This was called ossification. Eventually, bony fishes and sharks dominated the waters because their body structure development which helped them as swimmers is advanced compared to earlier fishes.
It’s a pea plant since they only live for a year and they die off at the end of the season
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
<em>Highlighted </em><em>muscles </em><em>are </em><em>the </em><em>muscles </em><em>of </em><em>the </em><em>neck. </em><em>It </em><em>is </em><em>a </em><em>group </em><em>of </em><em>four </em><em>muscles </em><em>which </em><em>helps </em><em>to </em><em>stabilize </em><em>the </em><em>shoulder </em><em>joint. </em>