Chapter 31 - Plant Diversity

Question 1

What are the four major transformations?

Answer 1

• evolution of alteration of generations
• evolution of vascular plants
• evolution of pollen and seeds
• evolution of the flowering plants (angiosperm)

Question 2

group that is not descended from a common ancestor
- small, only a couple of cm tall
- absorb water and CO2 through their surfaces
- simple bodies
ex. moss

Answer 2

bryophytes

Question 3

specialised vascular tissues for the transport of water, minerals and food
- early forms had no leaves but had branch structures
ex. horsetails

Answer 3

vascular plants

Question 4

group of vascular plants
- have a single vein
- ancestor of trees
ex. fern

Answer 4

lycophyte

Question 5

seed plants don’t require water for fertilization
- male gametophyte is transported through the air in pollen
- no flowers, only seeds
ex. ginkgo tree

Answer 5

gymnosperms

Question 6

tallest and oldest trees on earth
- produce seeds
ex. pine tree

Answer 6

conifers

Question 7

plants that produce flowers and bear their seeds in fruits
- reproduce quickly
- flower and animal interaction leads to diversity
ex. rose

Answer 7

angiosperms

Question 8

The multicellular haploid form in the plant lifecycle is referred to as the ____.

Answer 8

gametophyte

Question 9

Which of the following plant groups lacks vascular tissue, seeds, and flowers.

Answer 9

bryophytes

Question 10

A ____ is a haploid plant cell that can develop into a haploid multicellular individual without fusing to another cell.

Answer 10

spore

Question 11

Which taxonomic group of angiosperms contributes most to the global food supply for human societies

Answer 11

monocots

Question 12

Which of the vascular plants have swimming sperm that rely on surface moisture to achieve fertilization?

Answer 12

ferns, horsetails, and lycophytes