Plants are necessary for human .............................

Biologists describe plants as ____________________________ with tissues and organs.

Primitive land plants fi rst appeared about _______________________________ ago.

Most plant parts that grow above ground have a coating called a ______________ on the outer surface of their cells.

The cuticle is formed by _________________________, which are lipids that do not dissolve in water.

The cuticle helps keep water from ___________________________ from the plant tissues.

Photosynthesis produces glucose and oxygen from carbon dioxide and _________________.

__________________________are adaptations that enable gas exchange.

______________________ is a specialized transport tissue that is another plant adaptation to life on land.

Plants that lack specialized transport structures are _________________________________.

A __________________is a plant structure that contains an embryo and nutrients for the embryo.

The _________________ and nutrients are protected by a seed coat.

The life cycle of plants includes two stages, or _______________________________________.

The gametophyte generation produces gametes—_____________________________.

Sperm and eggs are both _______________________ cells

The sporophyte generation produces ______________________

The most familiar bryophytes are _______________________

Mosses are anchored to the soil or another surface by multicellular ___________________

About _______________________ of Earth’s surface might be covered with bryophytes.

Anthocerophyta are commonly called _______________________ because of their hornlike sporophytes.

Hepaticophytes (hih PA tih koh fi tes) are commonly called ___________________________.

Liverworts are classifi ed as either thallose (THAL lohs) or __________________.

Liverworts have ____________________ rhizoids.

A ___________________________ is a cluster of structures that produce spores.

An ______________________________ is a plant that lives anchored to another plant.