Life 103 Exam #1 Questions And Answers With Verified Study Solutions

Alternation of Generations - Alternation between an organism being diploid and haploid Blade - Leaves on kelp, holds Onto photosynthetic cells, And makes kelp go up instead of fall to the floor (brown algae) Heterotroph - An organism that gets food from another organism (animals and humans) Holdfast - Similar to roots, holds kelp to ocean floor (brown algae) Sporophyte - Diploid/ spore producing stage of a plants life Adaptation - A trait that evolves by selection for a particular function that the ancestor did not have binomial nomenclature - The two part scientific name of a species Phylogenetic Tree - Metaphorical Tree used to explain the relationship between similar species Branch Point - represents the divergence of 2 species Polytomy - A branch from which more than two groups emerge Phylogeny - The evolutionary relationships of a group of organisms Ecology - The study of the interaction of an organism(s) with the environmentParasitism - Receiving resources from a host while directly killing the host Dispersal - Movement of Organisms, usually a one way trip Bacteria - Unicellular and prokaryotic Autotroph - An organism that is able to make its own food Fimbrae - Allows bacteria to stick to their substrate or other individuals in a colony Flagellum - Structures that allow for the ability to move in response to stimuli Endosymbiosis - A process in which a unicellular organism engulfs another cell which then lives within the cell Nitrogen Fixation - Process of converting nitrogen gas into ammonia Chromalveolata - Eukaryotic Super group; Monophyletic and originated by secondary endosymbosis Euglenozoa - euglenids and kinetoplastids Evolution - A change in an organism over time Excavata - Diplomonads, parabasalids; characterized by cytoskeleton blade - Leaves on kelp, holds onto photosynthetic cells and makes kelp go up instead of fall to the floor (brown algae)holdfast - similar to roots, holds kelp to ocean floor (brown Algae Stipe - Trunk on kelp (brown algae) Yeast - single cell ascomycetes that can ferment carbs Basidiocarp - Fruiting body of Basidiomycetes (mushrooms)