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lab 2
| Question | Answer |
|---|---|
| connective tissue | supports, connects, and protects different parts of the body. typically looks like packed cells with little space between them in layers/sheets |
| epithelial tissue | covers body surfaces and lines organs and cavities (like skin). typically looks like lots of space between cells with visible fibers or a matrix |
| nervous tissue | sends and receives signals to control body functions. typically has big cell bodies with long extensions surrounded by many small cells |
| muscle tissue | sends and receives signals to control body functions |
| simple squamous | very thin, flat cells that look like tiles |
| cuboidal | cube-shaped cells with round nuclei in center |
| columnar | tall, rectangular cells with nuclei near bottom |
| stratified squamous | many layers with top cells flattened |
| bone tissue | hard, circular patterns with rings |
| cartilage tissue | smooth matrix with cells in little holes |
| adipose/fat tissue | big, empty-looking cells |
| blood tissue | cells floating in fluid |
| skeletal muscle | long, parallel fibers with striations and many nuclei per cell |
| cardiac muscle | striated, branched cells, usually one nucleus, there are dark lines between cells |
| smooth muscle | no striations, spindle shaped cells and one nucleus per cell |
| radial symmetry | body parts arranged around a central axis (like a circle) |
| bilateral symmetry | one plane divides the body into left and right halves |
| Porifera | sponges; simple, asymmetrical animals with pores, no true tissues |
| Cnidaria | jellyfish, corals; radial symmetry, stinging cells (cnidocytes |
| Platyhelminthes | flatworms; flat bodies, bilateral symmetry, no body cavity |
| Nematoda | roundworms; cylindrical, unsegmented, complete digestive tract |
| Annelida | segmented worms; body divided into repeating segments |
| Mollusca | snails, clams, octopus; soft body, often with a shell |
| Arthropoda | insects, spiders, crustaceans; exoskeleton, jointed appendages |
| Echinodermata | starfish, sea urchins; radial symmetry (adults), spiny skin |
| Dicot | flowers in multiples of 4 or 5 |
| monocot | flowers in multiples of 3 |
| apical meristem | region of active cell division for elongation |
| root cap | protects the apical meristem as root pushes through soil |
| zone of division | cells actively dividing |
| zone of elongation | cells lengthen, pushing root tip forward |
| zone of maturation | cells differentiate into different tissues |
| petals | attract pollinators |
| receptacle | base thar bears floral organs |
| sepals | protect the developing bud |
| androecium | male, stamens (anther+filament) |
| gynoecium | female, carpels (stigma, style, and ovary) |
| taxis | directed movement away or towards a stimulus |
| kinesis | non-directional change in activity level or turning rate in response to stimulus intensity |
| chordata | all animals with a notochord, dorsal nerve cord, and at some stage gill slits. includes all fish, amphibians, reptiles, birds, and mammals |
| amniotic egg | egg with protective membranes, found in reptiles, birds, and mammals |
| pollutant | any substance that causes harm to the ecosystem |
| point source | a single, identifiable discharge |
| non point source | diffuse sources |
| bioaccumulation | build-up of chemicals in an organism over time |
| biomagnification | increasing concentrations of toxins at higher trophic levels |
| allium test | uses onion root tips to assess toxicity via mitotic index |
| bioremediation | use of living organisms to remove or detoxify pollutants |
| thermal pollution | discharge of warm water/air into natural bodies |
Created by:
odetteschnell7