Yes they are.
Most certainly. A single-celled organism can never be seen with the naked eye.
organisms in an ecosystem.
no they are not
Yes
Yes.
suk my balls
an oak tree much?
Animalia
No. A prokaryote is a single cell.
An acorn comes from an oak tree. Oak trees produce acorns, which are a type of nut that serves as a seed for the oak tree to reproduce.
Maple tree Rose bush Oak tree Poison ivy plant Fern Mint plant Palm tree Eucalyptus tree Hosta plant Citrus tree
An oak tree.