overview of plants 2

Luna finds a plant in the forest and is curious about the type of plant she is viewing. She notices the plant has a woody stem and is about a foot taller than she is.

Based on this description alone, what is most likely true about this species?

• It is nonvascular.

• It is vascular.

• It is a flowering seed plant.

• It is a nonflowering seed plant.

Which statement best describes the earliest ancestors of plants?

• They had no competition.

• They were vascular.

• They had seeds.

• They lived in water.

Which group of plants lacks true roots, stems, and leaves?

seedless vascular plants

nonvascular plants

nonflowering seed plants

flowering plants

• seedless vascular plants

• nonvascular plants

• nonflowering seed plants

• flowering plants

Maple leaves, palm fronds, pine needles, and grass blades are each different kinds of modified leaves.

Which best describes why all plants need some sort of leaf or other green, leaf-like surface?

• to perform photosynthesis

• to stand upright

• to be eukaryotic

• to transport food

Which word is best used when describing both a tiny moss and a huge oak tree?

• multicellular

• vascular

• nonvascular

• unicellular

Which statements are true of all plants? Check all that apply.

All plants are vascular.

All plants are multicellular.

All plants are eukaryotic.

All plants are autotrophic.

All plants need sunlight.

All plants reproduce sexually.

• All plants are vascular.

• All plants are multicellular.

• All plants are eukaryotic.

• All plants are autotrophic.

• All plants need sunlight.

The first groups of land plants to evolve were liverworts, mosses, and hornworts. These plants were small and grew close to the ground because they relied on water being able to move on its own through the plant bodies. The next groups of land plants to evolve were ferns, which could grow bigger and taller because they could transport water and food.

What trait most likely evolved in ferns that was not present in the earlier groups?

• cuticles

• seed shells

• vascular tissues

• photosynthesis

All plants are able to complete the process of ______________, which means they are able to use energy from sunlight to make food.

• phloem

• xylem

• cellular respiration

• photosynthesis

What does xylem do in a plant?

• transport food

• transport water

• prevent water loss

• perform photosynthesis

Which is a waxy, water-repelling outer covering of a plant?

• a cuticle

• phloem

• a seed

• xylem