go ANIMAL ACTIVITIES. 
bees hatch from the egg as larve, or maggots, in cells 
much like the honey-cells. In these cells they find a 
bountiful supply of food, known as bee-bread, which 
is composed of honey and pollen gathered by the 
workers. In these cells, too, 
the young bees pass through the 
stages of complete metamorpho- 
sis. 
Insects and Plants. Besides 
the adaptations which fit insects 
to codperate with one another, 
there are also equally wonderful 
adaptations of structure fitting in- 
sects to codperate with plants to 
their mutual advantage. It is 
well known that plant-seeds, as 
well as the fertile eggs of animals, 
are produced only by the union of 
two kinds of cells, the male ele- 
ment being called the fertilizing 
cell. Among plants, pollen-cells 
grown on the stamens of flowers 
must fall upon the stigma and be 
conveyed thence to the ovary 
before seeds suitable for repro- 
duction can be formed. In many 
cases the pollen from one flower 
must be conveyed to the stigma 
Fic. 83.—Hive-bees, 1, Of another flower before fertiliza- 
female; 2, male; 3, tion can také place. Thiscarry- 
Srorken. ing of pollen from flower to flower 
is the work of insects which visit 
the flowers for the purpose of getting honey. On the 
visit, the pollen adheres to the hairs or other parts of 
the insect’s body, and is rubbed off by the stigma of 
the next flower approached. 
Each flower seems to depend on a particular insect 
whose proboscis just fits its own honey-cup. Thus, 
