The earliest plants to appear on the earth, based on the fossil record, are . The first plants to grow on land were , which lack vascular tissue. were the first group of land plants to evolve vascular tissue, allowing them to grow taller. The group produces seeds that develop in cones, while the group produces seeds that develop in fruit. Each of these groups of plants has a reproductive cycle that includes a form that produces seeds or spores and a form that produces sperm or eggs.

Cyanobacteria, bryophytes, Pteridophytes, Gymnosperms, Angiosperms, Sporophytic phase, and Gametophytic

Explanation:

Cyanobacteria or blue green algae were the first or earliest known plants which appeared on earth they performed the process of photosynthesis by using water and carbon dioxide in the atmosphere to produce oxygen gas. Bryophytes were the first land plants on earth including the mosses and liverworts, these plants did not had the vascular system and true roots, stems, and leaves.  Pteridophytes are the plants that have vascular system. Gymnosperms are the plants that have naked ovules and the seeds are enclosed in the woody covering called cone. The angiosperms are the flowering plants, which develops seeds after fertilization gets enclosed in a fruit. The sporophytic phase, involves the development of a dominant sporophyte which produces spores which on germination produces a gametophytes which produces gametes (male and female) for fertilization.  

1. Algea

2. Mosses

3. Ferns

4. Gymnosperms

5. Angiosperms

6. Sporophyte

7. Gametophyte

Explanation: I just did it and got them all right

the growth of the plants is affected by the heat of the light. what is the student doing?