Week 1 Flashcards
(20 cards)
how to hold microscope?
at the base and arm or neck
Kingdom Protozoa
polyphyletic group of eukaryotic organisms that are similar to animals, but don’t fit into any other kingdom
differences of animals and protozoans
animals are multicellular, eukaryotic, and heterotrophs
protozoans are eukaryotes, can be hetrotrophes, but are never multicellular
are protozoan unicellular or multicellular
unicellular
are protozoan heterotrophs
some are and they can have chloroplasts
Phylum Amoebozoa
3 characteristics
1-psuedopodia
2- lack of shell or defined body
3- present in marine environments, fresh water and soil
psuedopodia
extension of the membrane caused by cytoplasmic streaming
what is psuedopodia used for
feeding and locomotion
similar organisms to amoebozoa that have psuedopodia and have shells
radiolarians
foraminiferans
Phylum Plantae
2 characteristics
1- one or more flagella
2- pigmented: have chlorophyll
flagellum
signular flagella
flagella
pleural flagella
what is flagella used for
locomotion
Volvox spp.
colonial living organisms
what does volvox show us
first instance of cell differentation
what are different jobs cells can have in volvox
some are adapted to reproduce, while others are adapted for something else, like moving the colony
what does a group of many volvox act like
one large, multicellular individual
ciliophora characteristics
1- have cilia
2- have cytosome
cilia
small, hair- like structures that are used for locomotion
cytosome
mouth-like structure