Parts of Roots
Life Cycles
Plant Classes
Parts of Plants
Parts of Seeds
200

This main structure acts as the central anchor and original baseline for a plant's entire root system.

What is a primary root?

200

Marigolds, petunias, and squash belong to this category of plants that complete their entire life cycle in just one year or season.

What are annuals?

200

Derived from the Greek word for "naked seed," this plant group includes conifers like pines, spruces, and redwoods.

What are gymnosperms?

200

Acting as the plant's internal "highway," this stalk transports nutrients directly from the root up to the flower.

What is the stem?

200

This outer layer acts as a protective shield for the seed and can be scarified or treated to make it softer.

What is the seed coat?

400

These tiny, microscopic projections extend outward to directly assist the plant in soaking up essential water and nutrients.

What are root hairs?

400

Carrots, onions, and Black-eyed Susans fall under this group, which requires two full growing seasons to complete its life cycle.

What are biennials?

400

This embryonic leaf, which serves as the first seed leaf, is used to divide angiosperms into two main classes based on how many it possesses.

What is a cotyledon?

400

Growth happens at this specific location on the stem, where leaves and flowers emerge.

What is a node?

400

If you are looking for the part of the seed that forms the lower stem and the root system, you are looking for this.

What is the hypocotyl?

600

While all roots anchor plants and absorb water, this specialized function is unique specifically to legumes.

What is fixing nitrogen?

600

Azaleas, blueberries, and maple trees all belong to this life cycle group because they produce year after year.

What are perennials?

600

Taproots, netted leaf veins, and circular vascular bundle arrangements are all distinct traits belonging to this class of angiosperms.

What are dicots?

600

This term describes the empty stem space found extending between two or more growth nodes.

What is an internode?

600

These two environmental factors are explicitly required to soften the seed coat and trigger germination.

What are water and favorable temperatures?

800

Branching directly off secondary roots, these are even thinner offshoots within the root hierarchy.

What are tertiary roots?

800

While annuals live for one year, perennials produce for more than this specific number of years or growing seasons.

What is two?

800

Unlike gymnosperms, angiosperms produce seeds that are protected inside these structures or pods.

What are fruits?

800

While xylem carries nutrients specifically up the stem, this plant tissue distributes nutrients throughout the entire plant.

What is phloem?

800

This part of the seed embryo is responsible for forming all plant structures located above the first node of the stem.

What is the epicotyl?

1000

In order from thickest to thinnest, it's the 3-step hierarchy of branching root structures.

What are primary, secondary, and tertiary roots?

1000

During cold winter months, perennials often die back above ground, only to return in the spring from this underground structure.

What is the rootstock?

1000

While "mono-" means one, this prefix found in "dicotyledons" indicates that the plant embryo contains two seed leaves.

What is "di-"?

1000

These structures assist the plant in producing its own food by carrying out the process of photosynthesis.

What are leaves?

1000

This process begins when the seed coat is softened by water under favorable temperature conditions.

What is germination?

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