During the ______, angiosperms began overcoming non-flowering plants as the dominant land plants.
The earliest vascular plants date back to the ______ Period.
The ancient group of conifers known as Araucariaceae surfive today in natural habitat and are most common in this region of the world.
The Southern Hemisphere
High-browsing _____ declined markedly between the Late Jurassic and Early Cretaceous.
For most of Earth history, the land has been virtually void of all plant life.
_______ plants are those lacking specialized cells or the movement of nutrients and water.
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The elevation above which trees cannot grow because of snow and very cold temperatures is known as the ______.
_______ are cone-bearing gymnosperms with seeds resting on the projecting scales of their cones.
The first large forests of vascular plants filled wetlands during the _____ Period.
Fossil fruit has never been in Mesozoic sedimentary rocks.
______ are seed-producing plants where the seed is exposed (not enclosed, e.g., woody scales of a pine cone).
All the modern conifer families were already members of the Early Mesozoic landscape.
Spores are produced in structures called _____ (e.g., the prominent brown spots on the underside of fern fronds).
Sphagnum or peat moss is an example of a ______.
The angiosperm reproductive system is enhanced by insect pollination.
_____ grow in wet or damp areas often carpeting rocks and decaying wood on the forest floor.
Seed ferns are among the earliest speed-producing plants.
An ancient group of conifers is the family ______ that still grows today in the Southern Hemisphere.
This group of plants that was extinct except in Asia but later reintroduced to the rest of the world by man:
During the _____, angiosperms began overcoming the non-flowering plants as the dominant land plants.
_______ are seedless, spore-producing, vascular plants whose reproductive system ties them to most environments.
Ferns are ancient plants dating back long before dinosaurs.
Our solar system is about ________ years old.
Simple non-vascular plants like _______ were among the earliest land plants.
Seedless vascular plants were the earliest land plants.