BIOL 1202 : Test 3
Document Summary
Monocot (e. g. , corn) seedlings each have 1 cotyledon (seed leaf); in monocots the cotyledon often remains within the confines of the seed. Eudicot (e. g. , bean) seedlings each have 2 cotyledons (seed leaves) Is a plant that lives off the outside of another plant: photosynthetic, shoot system. Stems: some plants have specialized water-storage stems, baobab trees, saguaro cacti, stolons ( runners ) are horizontal, wandering, above ground stems, asexual, ex: strawberries. Branches: thorns are rigid, sharp branches that deter potential herbivores (especially mammalian browsers) Guard cells have to be directly across from each other. A leaf can close these pores to prevent water loss. In dicot stems these are the pith (inside) and cortex (found in the ring, outside of the vascular bundle: monocot called the ground tissue. Why do trees have rings: ring are vascular bundles, contains dead cells because its xylem.
