Having a single cell (and thus not divided into cells)
1When times are good, they exist as one-celled individuals, much like amoebas.
2The forms most frequently seen by such an examination are one-celled plants.
3The one-celled animal in its shell is, however, no longer a microscopic grain.
4Thus we get an immense variety amongst these Protozoa, as the one-celled animals are called.
5Each one-celled unit remains an animal; it is a colony of unicellulars, not a many-celled body.
6I remember starting out as a one-celled organism and painfully becoming an amphibian, then an air-breather.
7Yeast may be introduced as another family of one-celled plants, but one which is most useful.
8It is the type to which a moving close colony of one-celled microbes would soon come.
9We have still many loose associations of one-celled animals in nature, illustrating the approach to a community life.
10First we have loose associations of one-celled plants in a common bed, then closer clusters or many-celled bodies.
11They are clear little, one-celled creatures with a lot of hairs or cilia with which they scoot around.
12This is a small one-celled microscopic plant having a blood red color in one stage of its existence.
13Compare the conditions surrounding a one-celled animal, living in water, to the conditions surrounding the cells in the body.
14In the family called Hymenomycetes there are mixed with these, and closely packed together, one-celled sterile structures named cystidia.
15On the collar round the valve there are in the place of glands numerous one-celled papillae, having very short footstalks.
16If plants and animals all developed from a one-celled animal, such as the amoeba, why did not the amoeba develop?