PLANTS 5 



rooms, for instance, arc without chlorophyll, and there- 

 fore cannot make their own organic food. But they are 

 known to be plants, because certain things 

 show that they are descended from typical 

 plants. 



Since Philippine agriculture is almost 

 entirely devoted to plants, the subjects 

 for our study are plants and the factors 

 which influence the growth of plants. 

 The chief of these are the soil, water, FIG. 2 . Mushroom 

 light, and heat. 



Name four typical plants ; four typical animals. In what way are 

 plants like animals? How are they different? 

 Why must animals move to get their food ? 

 How do plants get their food? 

 Name some plant that is not typical. Why is it not typical? 



KINDS OF PLANTS 



There are more than 300,000 kinds of plants in the 

 world. They are divided into five great groups : 



1. Seaweeds. The simplest plants form a group called 

 seaweeds, most of which live in water. All other plants 

 are descended from these. They have no distinct leaves, 

 stems, and roots, but do contain chlorophyll. Many of 

 them are food for fish. 



2. Fungi. The fungi differ from seaweeds in not 

 containing chlorophyll. They must get their food as 

 animals do, from other plants or animals. Some of 

 them, as the mushrooms, get their food from the re- 

 mains of dead things. Hut many of them, called para- 



