Question

1.The second clue regarding the classification of this plant is its very short height at maturity.

The ability to grow tall is associated with what feature?

Group of answer choices

Spores as the major dispersal mechanisms.

Seeds

The presence of vascular tissue

Flagellated sperm

2.

Consider your answers to the previous questions and apply them to correctly answer the original question prompt below.

'A scientist finds a very short (2cm tall at maturity) plant with flagellated sperm. To which plant group does this organism likely belong?'

Group of answer choices

Bryophytes

Ferns

Gymnosperms

Angiosperms

3-

This question gives you two clues regarding the classification of this plant. First we'll consider the flagellated sperm to narrow down our options.

Which plant groups have flagellated sperm?

Group of answer choices

Bryophytes

Gymnosperms

Angiosperms

Ferns

Answer 1

1) The ability to grow tall is associated with

(c) Presence of vascular tissue.

Mechanical tissues are present which allow them to rise to great heights. Presence of long distance transport system in the form of vascular tissue (Xylem, phloem) which transports water, minerals and organic food to great heights.

2) The plant group it likely belongs to:-

(a) Bryophytes.

Since Bryophytes are small in size. They seldom attain great height or lenght.

Antheridium produces flagellate male gametes called as sperm. Water is essential for the swimming of male gametes to the archegonia.

3) The plant group having flagellated sperm :-

(a) Bryophytes

For fertilization, the sperms ( antherozoids) reach to archegonia via swimming in water. So the Motility of sperms are important in these plants. So flagellated sperm are found in Bryophytes.