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A watertight covering, called a(n)________ , made it possible for
plants to live in drier habitats
Nonvascular plants do not have true roots; rhizoids anchor the
gametophytes to the surfaces on which they grow.
Eggs and sperm of nonvascular plants form in separate structures, which
are often on separate plants.
The much smaller [gametophyte / sporophyte] of seedless vascular plants develops on
or below the surface of the soil.
Seedless vascular plants without roots and leaves are called [whisk ferns / horsetails].
The sporophytes of [ferns / club mosses] have a rhizome that is anchored by roots and
leaves called fronds.
. In some species of [club mosses / ferns], clusters of nongreen spore-bearing leaves
form a structure called a cone.
The seeds of an angiosperm have a supply of stored food, called
endosperm, at some time during their development.
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