Investigating Simple Plants: Seedless Vascular Plants

The video explores the evolution and significance of vascular tissues in plants, which allowed them to thrive in drier environments and grow larger. It explains the structure and function of vascular tissues, highlighting their role in transporting water and nutrients. The video categorizes vascular plants into those reproducing via spores and seeds, focusing on seedless vascular plants like club mosses, whisk ferns, and horse tails, detailing their characteristics and historical significance.

What was a significant evolutionary advantage of vascular tissues in plants?

• They allowed plants to photosynthesize.

• They enabled plants to live in aquatic environments.

• They helped plants survive in drier conditions and grow larger.

• They made plants resistant to diseases.

Which of the following is NOT a characteristic of early vascular plants?

• They are ancestors of modern seedless vascular plants.

• They reproduced via spores.

• They were seedless.

• They reproduced via seeds.

Which phylum do modern-day club mosses belong to?

• Psilotophyta

• Sphenophyta

• Lycophyta

• Bryophyta

What is a unique feature of whisk ferns in the phylum Psilotophyta?

• They are aquatic plants.

• They have a large number of species.

• They have complex leaves.

• They consist of simply forked green stems.

Why are horse tails sometimes referred to as scouring brushes in North America?

• They have a high silica content.

• They grow in swampy areas.

• They were used by early settlers to scrub pans.

• They have a rough texture.