GLY1102 Topic 9

question

During the ______, angiosperms began overcoming non-flowering plants as the dominant land plants.
answer

Cretaceous Period
question

The earliest vascular plants date back to the ______ Period.
answer

Silurian
question

The ancient group of conifers known as Araucariaceae surfive today in natural habitat and are most common in this region of the world.
answer

The Southern Hemisphere
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High-browsing _____ declined markedly between the Late Jurassic and Early Cretaceous.
answer

Sauropods
question

For most of Earth history, the land has been virtually void of all plant life.
answer

True
question

_______ plants are those lacking specialized cells or the movement of nutrients and water.
answer

Non-vascular
question

The elevation above which trees cannot grow because of snow and very cold temperatures is known as the ______.
answer

Tree line
question

_______ are cone-bearing gymnosperms with seeds resting on the projecting scales of their cones.
answer

Conifers
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The first large forests of vascular plants filled wetlands during the _____ Period.
answer

Devonian
question

Fossil fruit has never been in Mesozoic sedimentary rocks.
answer

False
question

______ are seed-producing plants where the seed is exposed (not enclosed, e.g., woody scales of a pine cone).
answer

Gymnosperms
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All the modern conifer families were already members of the Early Mesozoic landscape.
answer

True
question

Spores are produced in structures called _____ (e.g., the prominent brown spots on the underside of fern fronds).
answer

Sporangia
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Sphagnum or peat moss is an example of a ______.
answer

Bryophyte
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The angiosperm reproductive system is enhanced by insect pollination.
answer

True
question

_____ grow in wet or damp areas often carpeting rocks and decaying wood on the forest floor.
answer

Sphagnum mosses
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Seed ferns are among the earliest speed-producing plants.
answer

True
question

An ancient group of conifers is the family ______ that still grows today in the Southern Hemisphere.
answer

Araucariaceae
question

This group of plants that was extinct except in Asia but later reintroduced to the rest of the world by man:
answer

Ginkgoes
question

During the _____, angiosperms began overcoming the non-flowering plants as the dominant land plants.
answer

Cretaceous Period
question

_______ are seedless, spore-producing, vascular plants whose reproductive system ties them to most environments.
answer

Ferns
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Ferns are ancient plants dating back long before dinosaurs.
answer

True
question

Our solar system is about ________ years old.
answer

4.6 billion
question

Simple non-vascular plants like _______ were among the earliest land plants.
answer

Bryophytes
question

Seedless vascular plants were the earliest land plants.
answer

True

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