alga
algae
animalcule
aquaculture
asexual
aureus
background
biology
botany
cell
charophyte
chloroplast
colonial
colony
daughter
division
drop
education
educational
fauna
flora
freshwater
gonats
grand
green
lab
laboratory
lesson
life
macro
micro
microbiology
microscope
microscopic
nature
phytoplankton
plankton
pond
primitive
protozoa
protozoan
reproduction
science
spherical
volvox
waste
water
wimperkugel
zygnematophyceae
zygote