prokaryotes including bacteria. They lack nucleus and any membrane-bound organelles( have ribosomes that are unbounded by membranes), and have a circular DNA genome. Has one kingdom, Cyanobacteria- contain chlorophyll and can photosynthesize.
prokaryotes that often live in harsh conditions. Kingdom; archaebacteria which lack nuclei and organelles, and have circular DNA genome ; however, they have soem features in common with eukaryotes ( multiple types of RNA polymerase)
extreme salty conditions
extreme hot conditions
extreme anaerobes that release methane gas.
Eukaryotes containing nuclei, membrane-bound organelles, and linear DNA.
contains organelles and a true nucleus. most are unicellular, but some form colonies . divided into 3 phyla, potozoa(animal) like, algae(plant) like and fungus like.
Phylum Rhizopoda (Amoebas)
amoebas are unicelllular and move using pseudopodia. found in soils and freshwater and marine environments. some are parasitic .
animal parasites. some cause human diseases like malaria which is caused by the parasite plasmodium. have both sexual and asexual stages and often require two or more host for completion.
unicellular organisms characterized by cilia for movement and feeding. example parameceium
resemble overgrown amoeba. contain many nuclei
unicellular, photosynthetic algae
unicellular that have glasslike walls. live in both fresh and marine environments. walls remain behind when it dies and form diatomaceous earths which are useful as filtering mediums
seaweeds, largest and most complex plantlike protists. multicellular and most live marine environments. Some are large like the kelp
multicellular, eukaryotic, and photosynthetic plants
Division Bryophyta( nonvascular plant)
lacks vascular tissue (xylem and phloem) . Live in damp area where water is abundant. Require water for fertilization. DO NOT have true stems, leaves, or roots, examples are mosses, liverworts, and hornworts and roots
earliest vascular plant and contain vascular tissue phloem and xylem , true stems ,leaves, and roots. do not have seeds, but have spores
true vascular plants. cones carry seeds. most large evergreen trees such as pine, fires and cedars. "naked seed", gymnosperms, so they DONT produce flowers
true vascular plant that produce flowers and pollen. seeds are protected by fruit and nuts. examples, are apples, lima beans, tomatoes, and melons
single seed leaves or cotyledons. parralle veins, flowering parts in multi of 3 and complex arrangement of vascular tissue in stems and a fibrous(branchy) root system.
two seed leaves, met like veins, flowering parts in multi of 4 or 5 , tissue arranged in ring, taproot system
eukaryotic , and most are multicellular. filamentous structure and multi nucleic. lack chloroplasts, so heterotrophic. lack digestive system and are absorption feeders.
reproduces sexually and includes common molds as well as mycorrhiza.
25,000 members including mushrooms, shelf fungi, and puffballs.
eukaryotic, multicellular heterotrophic
sessile, perforate body made of two layers of cells. water is drawn in from the body , where food and water is trapped and ingested. marine environments
body walls made of two layers of cells and a central, sac like digestive system. radial symmetry. hydra, jelly fish, and sea anemones
bilateral symmetry and moderate head . panaria, flukes, and tapeworms
soft-bodied animals with hard exoskeletons. snails, oysters,and clams. octopi and squids are exceptions because they have reduced, internal shells. have foot for movement, visceral mass where organs are contain and mental that may secret a shell
closed circulation , mouth, anus, and secrete waste through metanephridia tubes. earthworm and leeches
joint appendages, hard exoskeleton, head, thorax, abdomen. open circulatory system and eliminate waste through malpighian tubes. crustaceans, insects, and arachnids.
radial symmetry and spiny exoskeleton. water vascular system ending in tube feet that function in feeding, gas exchange and movement. sea stars, sear urchin, and sand dollars
hollow notochord, dorsal nerve cord, and a tail( at soem point of their development)
flexible skeltons made of cartilage and well develop fins and jaws. breath through gills . Some lay eggs and some bear young. sharks and sting rays
true bone skeletons . breathe through gills an lay large number of eggs. live in both freshwater and marine environments. Bass, tuna and trout
well adapted to both land and water. eggs lack shell,aquatic larval stage and undergo metaporphasis into terrestrial adult.
terrestrial animals with thick scaly skin adapted to resist water loss. live in dry areas. eggs have shells to resist dehydration or bear young. breath breaththrough lungs. crocs, lizard, and snakes.
tetrapods with forelimbs, modified as wings . breath through lungs and lay shelled eggs. endothermic. owls, eagles, sparrows, and peguins
endothermic, have hair, nourish young form mammary glands. breath through lungs. most bear live young. rodent, kangaroos, antelope and humans