Plants & Animals

Question 1

Why plants are important:

Answer 1

-they are producers that support food webs

-provide habitats 9ex. birds nests)

-humans use plants for medicine, clothing, wood, and paper

Question 2

What group of green algae are plants thought to have evolved from?

Answer 2

Charophytes (400 million years ago)

Question 3

What makes green algae and plants green?

Answer 3

Chlorophyll

Question 4

How do plants and green algae start cytokinesis in mitosis?

Answer 4

By building a cell plate in the middle of the cell

Question 5

What do plants and green algae store extra food as?

Answer 5

starch

Question 6

What do plants and green algae have in their cell walls?

Answer 6

cellulose

Question 7

plants are sessile, what does that mean?

Answer 7

cannot move from place to place

Question 8

What adaptations help plants survive on land?

Answer 8

-waxy cuticle prevents water loss

-stomata allow gas exchange

Question 9

Bryophyta key traits:
(ex. mosses, liverworts)

Answer 9

-no true leaves, roots, or seeds

-need wet conditions for fertilization

Question 10

Seedless plants key traits:
(ex. club mosses and ferns)

Answer 10

-produce spores instead of seeds

-lignin provides support

Question 11

Seed Plants

Question 12

Gymnosperms (naked seeds) use:

Answer 12

cones with pollen or ovules

Question 13

Angiosperms (vessel seed) are:
they use:

Answer 13

-Flowering plants

-uses flowers with pollen and/or ovules to make seed-containing fruits