Science Chapter 6 Lesson 1 - Plants Flashcards

Plant Classification

• Scientists classify plants into groups based on characteristics such as color, shape, size, reproductive methods, and types of flowers or seeds.
• Classification helps in understanding the diversity and relationships among different plant species.

Flowering Plants

• Flowering plants, also known as angiosperms, produce flowers and bear seeds within those flowers.
• Flowering plants exhibit a wide variety of root, stem, leaf, and flower types, contributing to their diversity.

Woody vs. Green-stemmed Plants

• Plants with woody stems can achieve greater heights than those with green, flexible stems due to structural support and durability.

Deciduous Trees

• Deciduous trees are those that shed their leaves seasonally, regrowing them as part of their life cycle.

Coniferous Trees

• Coniferous trees reproduce by producing seeds in cones, a method distinct from flowering plants.
• These trees typically do not lose their leaves and maintain them throughout the year, allowing them to retain a green appearance.

Leaf Structure

• The leaves of coniferous trees are often shaped like needles or brushes, contrasting with the broad leaves typically found on flowering trees.

Comparison with Deciduous Trees

• Unlike deciduous trees, coniferous trees do not lose their leaves seasonally, providing advantages in certain climates.

Non-Seed Plants

• Plants such as ferns and mosses reproduce via spores rather than seeds, showcasing an alternative method of reproduction.

Spores

• A spore is a tiny cell capable of developing into a new plant, serving as a reproductive unit for certain plant species.

Rain Forest Biodiversity

• The rain forest is recognized as the region with the highest diversity of plant and animal species globally.
• The favorable climate of the rain forest, with ample warmth and moisture, supports an abundant variety of life forms.