THE LIVING CELL 29 
Amoeba. This process is called sporulation and represents 
another method of reproduction shown by some species of the 
Ameeba. 
THE RELATION OF PLANTS AND ANIMALS 
One can see many striking differences between the highest 
forms of plants such as the sunflower and orchid and the highest 
forms of animals such as man and the gorilla, but as one passes to 
the lower forms of plants and animals these differences gradually 
disappear. There are a number of low types of organisms such 
as Euglena and Volvox which have characteristics common to 
both plants and animals and which might be placed in either 
group. 
PLANTS 
. Most plants possess the 
power of constructing com- 
plex organic food substances 
like sugar and starch from 
water and carbon dioxide 
by means of chlorophyll and 
light. 
. The cells of most plants 
possess rigid cell walls com- 
posed of cellulose and pec- 
tose which surround their 
protoplasts. 
. Most plants are incapable 
of moving from place to 
place (locomotion). 
. In most of the simple plants 
growth is not localized but 
in the more complex plants 
growth in length becomes 
localized in the tip regions 
of organs and in these con- 
\. tinues indefinitely. 
. Most plants are constructive 
agents. 
ANIMALS 
1. Most animals cannot con- 
struct their own foods but 
are dependent upon green 
plants for the food essen- 
tial to their nutrition and 
existence. 
. The cells of most animals 
are devoid of such walls. 
. Most animals are capable 
of locomotion. 
. In most animals growth in 
length is not restricted to 
the ends of body or to the 
extremities of organs and 
ceases when the animal 
attains maturity. 
. Most animals are destruc- 
tive agents. 
