final lab Flashcards
distinguishing characteristic of fungi
no chlorophyll, heterotrophic, mycellium
rhizopus morphology
adult looks like a lollipop
rhizopus life cycle
sexual. Sporangium produces haploid spores that fall onto a food source and germinate into haploid filaments. Haploid hyphae fuse to form a diploid zygospore. zygospore undergoes meiosis
defining characteristic of ascomycetes
sexual spores are produced in saclike asci
ascomycota sexual life cycle
Haploid mycelia fuse to form a dikaryotic hyphae. Hyphae produce asci that form a fruiting body ascocarp.
ascomycota asexual life cycle
ascocarp relases ascospores that germinate into haploid conidiophore filaments. Conidiophores produce conidia which germinate into mycelia.
Basidiomycota: Mushrooms
produce spores called basidia which are released from gills. Spores germinate into haploid mycelia. Mycelia fuse but nuclei do not. Forms a dikaryotic mycelium that divides by meiosis to form a mushroom.
what are lichens composed of
fungus and green algae or cyanobacteria
saphrophytic
obtain food from decomposition and absorption of nutrients from dead organic matter
mycorrhizae
symbiotic relationship between mycelium and plant roots. mycelium directly supplies nutrients to plant roots in exchange for food.
ascomycota spores (ascospores)
look like hands with skinny fingers
basidiomycota spores (basidia)
club shaped
distinguishing characteristics of the animal kingdom
multicellular, heterotrophic
coelom
body cavity which is the space between the body wall and digestive tract. fully lined with mesoderm
pseudocoelom
partly lined by endoderm, partly lined by mesoderm
porifera characteristics
no tissues, symmetry, or coelom. collar cells for feeding.
osculum
pushes water out of sponges for feeding
cnidaria
2 tissue layers, radial symmetry, gastrovascular cavity, cnidocytes
platyhelminthes
triploblastic, acoelomate, bilateral symmetry
auricles
ear like bulges on the side of planarians head
blastophore
opening that develops into either mouth or anus
cnidarian life cycle
polyp, medusa
ephyra
juvenile jellyfish
nematocyst
discharge a thread when cnidocyte is touched
spicules porifera
give strength to sponge body
tentacles cnidaria
used to capture and eat prey
rhizopus spore
dark spiky zygospore, look like sperm
dorsal
top/ back side
ventral
bottom/front side
cephalization
concentration of a nervous system in the head
nematoda (ascaris)
unsegmented roundworm, pseudocoelom, cuticle
mollusca
coelom, foot, visceral mass, mantle
annelida
segmented worm, closed circulatory system
arthropoda
segmented exoskeleton, jointed limbs, open circulatory system
echinodermata
bilateral symmetry larva, radial symmetry adults, no excretory system, no cephalization, water vascular system
chordata
notochord, hollow dorsal nerve chord, post anal tail, gill slits
cse citation
name. year. title. name of journal. city (state). publisher. chapter: pages. available from (url)
what is plankton
organisms that move by drifting in water: Bacteria, protists, small plants, small animals
biodiversity
variety of life
species diversity
variety of species, takes into account species richness and evenness
genetic diversity
variety of genes in a population
ecosystem diversity
variety of ecosystems in which multiple species interact
species richness
number of different species
species evenness
proportion of the different species
shannon diversity index formula
-1(pi*ln(pi))
atp
a molecule that stores and provides energy for cells
producer
convert inorganic molecules from the environment into organic compounds
consumer
acquire organic matter through feeding
trophic level
connections among species within an ecosystem based on the ways in which various organisms obtain energy and organic matter
biomass
mass of living material that represents a fixed amt of energy
lower trophic level= higher biomass
