A
Unicellular means:
One cell
do snails have teeth? y/n
yes
how do fungi breathe?
they exchange gas with the soil
describe how amoebas get nutrition
they surround their food and absorb it
how do tadpoles breathe?
gills
Which is a unicellular organism: tree, mushroom, amoeba
amoeba
how do worms breathe?
by diffusion through their skin
Which is multicellular? yeast paramecium, mushroom, bacteria
mushroom
how does bacteria exchange gas? [breathe]
diffusion across their membranes
are worms multicellular or unicellular?
multicellular
name a type of fungi
answers will vary, teacher choice to accept answers
which two are multicellular: yeast, paramecium, mushroom, seaweed, bacteria
mushroom and seaweed
what is a diatom mostly made up of?
silica
what is the main difference between unicellular and multicellular organisms?
multicellular organisms have specialized cells
how do frogs breathe? [2 answers]
with lungs and through their skin
name 2 organelles of an unicellular organism
cytoplasm
cell membrane
nucleus
...etc...
explain the levels of organization in a multicellular organism
cells
tissues
organs
organ systems
organism
structure that controls what enters and leaves a cell
cell membrane
name two ways unicellular organisms can move
by flagellum or pseudopod
in unicellular organisms, life functions are carried out by
one cell
The process of cells developing specific roles is called:
cell specialization
what is cell specialization?
It means that cells have different jobs or functions
list a disadvantage of being multicellular
1. slower reproduction
2. dependent on all systems [each specialized group of cells needs to be functioning properly]
explain how a unicellular organism carries out life processes:
a unicellular organism uses one cell to perform all life functions [nutrition, reproduction, gas exchange, waste removal, etc]
list an advantage of being multicellular
1. can grow larger
2. perform complex functions