Chapter 29 Plant Diversity I

Question 1

______ & ________ likely existed on land by 1.2 billion years
ago

Answer 1

Cyanobacteria, protists

Question 1

Small plants, fungi, and animals emerged on land only within the last
_______________ years

Answer 1

500 million

Question 2

Since colonizing land, plants have diversified into more than ________
living species

Answer 2

290,000

Question 3

The reproductive cycle where plants alternate between two multicellular generations

Answer 3

Alternation of generations

Question 4

Diploid cells that undergo meiosis to generate haploid spores

Answer 4

Sporocytes

Question 5

Organs that produce gametes

Answer 5

Gametangia

Question 6

Male gametangia which produce and release sperm

Answer 6

Antheridia

Question 7

Female gametangia which produce a single nonmotile egg

Answer 7

Archeogina

Question 8

Plants sustain continual growth in length by repeated cell division
within the

Answer 8

Apical Meristems

Question 9

The appearance of plant spores in the fossil record indicate that plants colonized land at least _______

Answer 9

470 million years ago

Question 10

Non vascular plants are commonly called

Answer 10

Bryophytes