Bio 202: Exam #2

What is an axillary bud? {Ans: A structure that has the potential to form a lateral shoot, or branch}What is a sieve tube? {Ans: Long collections of sieve tube members that are alive at maturity that transport photosynthates}The domain of life that is most recently discovered and also one of the most ancient is the ________ . {Ans: Archaea}What are some Rhizarians and their respective characteristics? {Ans: Radiclarians: protists with delicate & symmetrical internal skeletons that are generally made of silica, pseudopodia radiate from the central body & are reinforced by bundles of microtubules. Forams: have porous shells called tests that consist of a single piece of calcium carbonate, pseudopodia function in swimming, test formation, & feeding & many derive nourishment from photosynthetic symbionts. Cercozoans: a large group of amoeba & flagellated protists that feed using threadlike pseudopodia, most are heterotrophs & many are parasites of animals, plants, or other protists}"Compound X" is released by a ripening fruit. If I tell you that the hormonal effect of compound X is an example of positive feedback, what kind of effect must compound X have on the process of fruit ripening? {Ans: Compound X causes fruit ripening}Which