) Let’s say you are walking around FIU’s preserve, how would you tell if a plant there is a monocot or a eudicot? B) Use the differences in stem morphology, primary and secondary growth to explain why eudicots are also called woody plants. C) Why do trees die when the bark is removed from the circumference of the tree?

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.