Chapter 29 Plant Diversity I: How Plants Colonized Land Containing Questions
And Answes
1) According to the fossil record, plants colonized terrestrial habitats _____.
A) in conjunction with insects that pollinated them
B) in conjunction with fungi that helped provide them with nutrients from the soil
C) to escape abundant herbivores in the oceans
D) only about 150 million years ago - B) in conjunction with fungi that helped provide them with
nutrients from the soil
2) The most direct ancestors of land plants were probably _____.
A) kelp (brown alga) that formed large beds near the shorelines
B) green algae
C) photosynthesizing prokaryotes (cyanobacteria)
D) liverworts and mosses - B) green algae
5) Which of these time intervals, based on plant fossils, came last (most recently)?
A) extensive growth of gymnosperm forests
B) colonization of land by early liverworts and mosses
C) rise and diversification of angiosperms
D) carboniferous swamps with giant horsetails and lycophytes - C) rise and diversification of
angiosperms
6) Why have biologists hypothesized that the first land plants had a low, sprawling growth habit?
A) They were tied to the water for reproduction and thus needed to remain in close contact with the
moist soil.
B) The ancestors of land plants, green algae, lack the structural support to stand erect in air.
C) Land animals of that period were small and could not pollinate tall plants.
D) There was less competition for space so they simply spread out flat. - B) The ancestors of land
plants, green algae, lack the structural support to stand erect in air.
, 7) Spores and seeds have basically the same function—dispersal—but are vastly different because
_____.
A) spores have a protective outer covering; seeds do not
B) spores have an embryo; seeds do not
C) spores have stored nutrition; seeds do not
D) spores are unicellular; seeds are not - D) spores are unicellular; seeds are not
8) You find a green organism in a pond near your house and believe it is a plant, not an alga. The
mystery organism is most likely a plant and not an alga if it _____.
A) contains chloroplasts
B) is surrounded by a cuticle
C) does not contain vascular tissue
D) has cell walls that are comprised largely of cellulose - B) is surrounded by a cuticle
11) According to our current knowledge of plant evolution, which group of organisms should feature
cell division most similar to that of land plants?
A) unicellular green algae
B) cyanobacteria
C) charophytes
D) red algae - C) charophytes
12) Which taxon is essentially equivalent to the "embryophytes"?
A) Plantae
B) Pterophyta
C) Bryophyta
D) Charophycea - A) Plantae
The following questions refer to the generalized life cycle for land plants shown in the figure below.
Each number within a circle or square represents a specific plant or plant part, and each number
over an arrow represents either meiosis, mitosis, or fertilization.
And Answes
1) According to the fossil record, plants colonized terrestrial habitats _____.
A) in conjunction with insects that pollinated them
B) in conjunction with fungi that helped provide them with nutrients from the soil
C) to escape abundant herbivores in the oceans
D) only about 150 million years ago - B) in conjunction with fungi that helped provide them with
nutrients from the soil
2) The most direct ancestors of land plants were probably _____.
A) kelp (brown alga) that formed large beds near the shorelines
B) green algae
C) photosynthesizing prokaryotes (cyanobacteria)
D) liverworts and mosses - B) green algae
5) Which of these time intervals, based on plant fossils, came last (most recently)?
A) extensive growth of gymnosperm forests
B) colonization of land by early liverworts and mosses
C) rise and diversification of angiosperms
D) carboniferous swamps with giant horsetails and lycophytes - C) rise and diversification of
angiosperms
6) Why have biologists hypothesized that the first land plants had a low, sprawling growth habit?
A) They were tied to the water for reproduction and thus needed to remain in close contact with the
moist soil.
B) The ancestors of land plants, green algae, lack the structural support to stand erect in air.
C) Land animals of that period were small and could not pollinate tall plants.
D) There was less competition for space so they simply spread out flat. - B) The ancestors of land
plants, green algae, lack the structural support to stand erect in air.
, 7) Spores and seeds have basically the same function—dispersal—but are vastly different because
_____.
A) spores have a protective outer covering; seeds do not
B) spores have an embryo; seeds do not
C) spores have stored nutrition; seeds do not
D) spores are unicellular; seeds are not - D) spores are unicellular; seeds are not
8) You find a green organism in a pond near your house and believe it is a plant, not an alga. The
mystery organism is most likely a plant and not an alga if it _____.
A) contains chloroplasts
B) is surrounded by a cuticle
C) does not contain vascular tissue
D) has cell walls that are comprised largely of cellulose - B) is surrounded by a cuticle
11) According to our current knowledge of plant evolution, which group of organisms should feature
cell division most similar to that of land plants?
A) unicellular green algae
B) cyanobacteria
C) charophytes
D) red algae - C) charophytes
12) Which taxon is essentially equivalent to the "embryophytes"?
A) Plantae
B) Pterophyta
C) Bryophyta
D) Charophycea - A) Plantae
The following questions refer to the generalized life cycle for land plants shown in the figure below.
Each number within a circle or square represents a specific plant or plant part, and each number
over an arrow represents either meiosis, mitosis, or fertilization.
