17. a botanist discovers a new species of plant in a tropical rain forest. after observing its anatomy and life cycle, he notes the following characteristics: flagellated sperm, xylem, separate gametophyte and sporophyte generations with the sporophyte dominant, and no seeds. this plant is probably most closely related to

The correct answer will be- Pteridophytes

Explanation:

The plant kingdom is divided into many divisions which are distinguished on the basis of unique characteristics present in them. The main plant groups are Thallophytes, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms.

The plant group which is characterised by having dominant sporophyte, no seeds, presence of xylem and the flagellated sperms is known as the Pteridophytes.

The pteridophytes are the vascular plants with no seed production and contain flagellated sperm which help the sperm to swim to reach the female reproductive structure.

Thus, pteridophytes are the correct answer.

i don’t no. suiopgohjk

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.