"Various Plants" Biological Diversity PPT Courseware 3

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"Various Plants" Biological Diversity PPT Courseware 3

algae plants

Algae are a type of eukaryote in the kingdom Protista (some are also prokaryotes, such as algae in the phylum Cyanobacteria). Mainly aquatic, without vascular bundles, capable of photosynthesis. They vary in size, ranging from single-cell dinoflagellates 1 micron in length to large brown algae up to 60 meters long. Some leading experts continue to classify algae as plants or plant-like organisms, but algae have no real roots, stems, leaves, or vascular systems. This is the same as bryophytes.

Ferns

This is a general name for woody plants that grew in lowlands during the Devonian period, about 400 million years ago. They require water as part of their regeneration cycle and have evolved into many different species since then, and are still a vital plant today.

Ferns (Pteridophyta) are higher plants that are only slightly more advanced than bryophytes. It flourished in the Carboniferous Period, when it was a tall plant with a height of 20-30m. Reproduce by spores. Some species are edible, medicinal and ornamental. The high-quality coal on Earth was basically formed from the large ferns of the Carboniferous period. The vast majority of these ferns became extinct before the Mesozoic Era. Today their descendants mostly grow in moist and dark jungles, and most of them are dwarf types.

1. Scientists classify plants mainly based on their characteristics. They divided plants into two categories, ________ and ________, based on whether they bloomed or not.

2. According to the nature of plant stems, plants can be divided into ________ and ________, etc.; according to whether they are deciduous or not, plants can be divided into ________ and ________.

3. Among non-flowering plants, ________, ________ and ________ plants can produce nutrients by themselves, which is the same as flowering plants.

judge

1. When the flowers of all plants reproduce, they need insects to help pollinate them. ( )

2. Fungi also belong to plants. ( )

3. Camphor tree is a non-flowering plant. ( )

4. All plants are green flowering plants ( )

5. Willow, lichen, and cedar are all non-flowering plants. ( )

6. The living environment of different plants is the same. ( )

1. Which of the following plants has fragrant leaves ( ).

A. Willow B. Wutong C. Camphor tree

2. Which of the following plants are shade-loving plants ( ).

A. Moss B. Impatiens C. Palm tree

3. Which of the following plants are flowering plants ( ).

A. pine B. fern C. moss

4. Which of the following plants are not aquatic plants ( ).

A. Water peanut B. Duckweed C. Ligustrum lucidum

5. Which of the following plants are seed plants ( ).

A. Moss B. Mushroom C. Cypress

6. Which of the following plants are rare plants in my country ( ).

A. Metasequoia B. Camphor tree C. Pinus tabulaeformis

7. Which of the following plants is a green non-flowering plant ( ).

A. Ferns B. Pines C. Willows

8. Which of the following plants is not herbaceous ( ).

A. Cedar B. Setaria C. Impatiens

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Update Time: 2024-09-09

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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