00:01
We have some cell types.
00:03
Platelets, red, and white blood cells are found in bacteria, their animal cells, their protozoa, or their plant cells.
00:13
So these are four different groups of organisms, and we can immediately rule out two of these.
00:19
We can rule out bacteria, and we can rule out protozoa, because both of these are unicellular.
00:24
They don't have types of cell, a single cell is a whole organism.
00:28
So they can't have a blood cell.
00:32
And we're left with the animals and the plants.
00:35
So these are unicellular.
00:37
They don't have cell types.
00:39
These are also unicellular.
00:43
So protozoa are a group of protists.
00:48
Cellulen.
00:50
They're a group of protists that resemble animal cells.
00:53
So they resemble animals in that they don't have a cell wall.
00:56
They move around.
00:58
They consume other things, like they consume bacteria or other.
01:02
Protests, but they still don't have cell types because they're single -celled...
