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"Aquatic Plants" Plant PPT Courseware 2
Think about it: Why do water hyacinths float on water?
The enlarged spongy body on the petiole of water hyacinth is filled with air
The sponge-like air bag structure is very light, so it can float on the water (adapted to the environment of aquatic plants)
summary:
1. Aquatic plants have organs such as roots, stems, and leaves, and their growth requires water, sunlight, and air.
2. The reason why water hyacinth floats on the water is that the expanded spongy body in the petiole of water hyacinth is filled with air.
The growing environment of aquatic plants
What is the environment in which most of the aquatic plants you have seen grow?
It grows in the pool
It grows in wetlands
It grows on the water bank
It grows in the swamp
It grows in lakes
It grows in the pond
anything else?
What are the similarities and differences between aquatic plants and terrestrial plants such as trees and grasses?
The same points: they all have roots, stems and leaves, they all reproduce, they all die, they all need sunlight, water and air, they all have chlorophyll, they all use sunlight and carbon dioxide to synthesize oxygen and organic nutrients. Life activities and growth processes are similar.
Differences: The living environment is different and the demand for water is different. Most aquatic plants are algae, which are inferior to terrestrial plants.
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For more information about the "Plants and Aquatic Plants" PPT courseware, please click on the "Plant ppt Aquatic Plants ppt" tag.
"Aquatic Plants" Plant PPT:
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"Aquatic Plants" Plant PPT Courseware 5:
"Aquatic Plants" Plant PPT Courseware 5 1. What are aquatic plants? A group of plants that live in an environment with water. Water-containing areas such as swamps, oceans, wetlands, rivers, lakes, etc. Typical aquatic plants rely on water throughout their lives. Common aquatic plants:..
"Aquatic Plants" Plant PPT Courseware 4:
"Aquatic Plants" Plant PPT Courseware 4 1. What are aquatic plants? A group of plants that live in an environment with water. Water-containing areas such as swamps, oceans, wetlands, rivers, lakes, etc. Typical aquatic plants rely on water throughout their lives. Common aquatic plants:..