Arrange the following plants as per the correct order of their evolution.
(A). Psilophyton
(B). Tracheophyte ancestors
(C). Rhynia-type plants
(D). Chlorophyte ancestors.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (D), (B), (C), (A)
(D) Chlorophyte ancestors — first. Chlorophytes are green algae that live in water. Land plants arose from these green algal ancestors, so they stand at the base of the figure.
(B) Tracheophyte ancestors — second. Tracheophytes are plants with vascular tissue (xylem and phloem). This tissue carries water and food, which let plants live on land.
(C) Rhynia-type plants — third. These were among the earliest simple vascular plants, of the Silurian period. They came from the tracheophyte ancestors.
(A) Psilophyton — last. Psilophyton is the highest of the four on the main line of the figure. Later groups such as ferns, conifers and the progymnosperms branch out from this line.
NCERT Extract:
A Brief Account of Evolution –
