Mycorrhizae are - Study guides, Class notes & Summaries

3 ways cowbirds find hosts - 1. sit high on perch and look around 2. walk on ground and look 3. drive birds off by scaring them so that they can lay their eggs 4 advantages of seed dispersal - -Avoids crowding competition -Prevents spread of disease -Prevents in-breeding -Saves some offspring from being eaten 5 adaptations of obligate brood parasites - 1. fast egg laying (20-40 sec for cowbirds) 2. thicker egg shells 3. fast hatching egg 4. removal of host egg prior to laying 5. baby ...

Kingdom Fungi - decomposers, contain no chlorophyll (non photosynthetic, majority are multicellular, some unicellular, non-motile, cell walls contained chitin, and reproduce sexually and asexually multicellular fungi - molds and mushrooms unicellular fungi - yeast asexual reproduction - reproduction through spores sexual reproduction - reproduction through mating of hyphae filaments Mycelium - distinctive body; composed of microscopic, branched filaments known as hyphae. Involved ...

The Primary role of Fungi - correct answer-Decomposers- they break things down Modes of Nutrition in Fungi - correct answer-Heterotrophs with extracellular digestion Exoenzymes - correct answer-Fungi Release these enzymes outside of the cell wall. Break down complex molecules into smaller organic molecules which can be absorbed. Extracellular Digestion - correct answer-The release of exoenzymes out side of the cell wall, followed by the absorption of nutrients.. Saprobes - correct an...

ARBORIST CERTIFICATION STUDY GUIDE/ EXAM REVIEW QUESTIONS AND ANSWERS, RATED A+ Meristem - -Sites of rapid cell division in the shoot tips, root tips, and cambium. Apical meristem - -Meristems located at the end of the shoot are called primary, or _________ meristems Scales - -Buds are covered by _____________ that leave permanent scars on the twig when the buds break dormancy. These scars can be useful in tree ID. Apical dominance - -The tendency for terminal buds to inhibit the growth...

3 mechanisms for prokaryot genetic recombination - 1.)Transformation 2.)Conjugation 3.)Transduction Absolute dating - -Radioactive isotopes decay over regular annual time periods (half-lives) -C14 5,700 yrs - radioactive isotopes vs stable isotopes -stable isotopes stay the same after the organism dies Alexander Fleming - -Discovered Penicillin -microbe v. microbe interaction -Capitalized on mistake in the lab, left plate out and fungus grew on it Algae - -Protist -plant like; photoau...

How do fungi use absorptive heterotrophy? Correct Answer-Fungi secrete hydrolytic enzymes into their surrounds that break down complex molecules to smaller organic compounds that the fungi can absorb into their bodies and use. Other types of fungi use enzymes to penetrate the walls of cells, enabling the fungi to absorb nutrients from the cells. What are hyphae? Correct Answer-Multicellular fungi typically form a network of tiny filaments called hyphae. Hyphae consist of tubular cell walls su...

mottle - ANSWERA splotch (or spot) of one color in a horizon of soil that is predominantly another color is a ______. 2 - ANSWERA soil has a color of 7.5YR 2/6, the value is __________ , which indicates that the soil's color is relatively intense 54 - ANSWERThe soil bulk density is 1.2 g/cm3 and the particle density is 2.6 g/cm3. What is the percentage of pore space (i.e., porosity) of the soil________% fungi - ANSWERThis group of organisms plays an important role in decomposition of...

WSU Biology 106 Exam 2 >> Questions and Answers Graded A++ Fungi heterotrophs that feed by absorption Heterotrophs absorb nutrients from outside the body Roles of fungi decomposers, parasites, mutualists (symbiotic and microrizzae), early land colonizers What do fungi use to break complex molecules? Enzymes Chitin made of cellulose, make up the cell walls of fungi Hyphae continuous strands above/below ground, generate spores, colonizes soil Fungi life cycle Mycellum a ...

fruit development ~ what happens when auxin is applied to the stigma of a unpollinated flower ? Provide food to animals eating the fruit even if pollination isn't successful à Maintaining dispersers alive for seeds that do develop ~ Advantage of having some parthenocarpic fruits for the plant? when there are more than 2 sets of chromosomes ~ what is polyploid Autopolyploidy ~ polyploid product of intraspecific crossing (2 parent cells from the same species) gibberellin ~ pl...

Monocot root system - Answer-Fibrous Eudicot root system - Answer-Taproot Mycorrhizae - Answer-Symbiotic relationship between plants and fungi (hyphae) - increase in surface area Nodes - Answer-Portion(s) of the stem where leaves attach Internodes - Answer-Segments of the stem where no leaves attach Terminal buds - Answer-Composed of developing leaves and are partly responsible for inhibiting the growth of axillary buds by apical dominance. Apical dominance - Answer-Plants grow verticall...