Science Class: Plant Classification and Reproduction

<p>To store water and adapt to varying temperatures (A)</p> Signup and view all the answers

<p>In both moist tropical areas and deserts (D)</p> Signup and view all the answers

<p>They develop on the surface of scales (C)</p> Signup and view all the answers

<p>The male cones grow lower than the female cones to ensure pollen is carried by wind to the female cone. (A)</p> Signup and view all the answers

<p>The sperm cells travel through a tube to the egg cell, resulting in seed formation (A)</p> Signup and view all the answers

<p>They are flowering plants (A)</p> Signup and view all the answers

<p>Monocots have one cotyledon, while dicots have two (B)</p> Signup and view all the answers

<p>Through spores (C)</p> Signup and view all the answers

<p>Vascular plants have true roots, stems, and leaves; non-vascular plants don't (B)</p> Signup and view all the answers

<p>Fern (D)</p> Signup and view all the answers

<p>They are soft and spongy plants with leaves and stalks. (B)</p> Signup and view all the answers

<p>Ferns (B)</p> Signup and view all the answers

<p>Carry water to different parts of the plant (B)</p> Signup and view all the answers

<p>They have a flat, leaf-like body called a thallus. (B)</p> Signup and view all the answers

<p>Gemmae cups (A)</p> Signup and view all the answers

<p>Ferns (C)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>Sporangia (D)</p> Signup and view all the answers

<p>Their gametophyte stage can last for 15 years. (A)</p> Signup and view all the answers

<p>To absorb water and nutrients (B)</p> Signup and view all the answers

<p>All of the above (D)</p> Signup and view all the answers

<p>Ovary (D)</p> Signup and view all the answers

<p>Anther (A)</p> Signup and view all the answers

<p>Monocots have one cotyledon, while dicots have two cotyledons. (A)</p> Signup and view all the answers

<p>To attract pollinators. (B)</p> Signup and view all the answers

<p>Guava (D)</p> Signup and view all the answers

<p>Stigma (D)</p> Signup and view all the answers

<p>To protect the flower bud. (B)</p> Signup and view all the answers

<p>It is composed of filament and anther. (C)</p> Signup and view all the answers

These plants reproduce by spreading spores, which are tiny, single-celled structures that can grow into new plants.

These plants lack specialized vascular tissues like xylem and phloem, which transport water and nutrients. They are typically small and grow in moist environments.

These plants have a more complex structure with true roots, stems, and leaves. They possess vascular tissues, enabling them to efficiently transport water and nutrients.

These plants are classified as seedless vascular plants. They reproduce through spores and are characterized by having true roots, stems, and leaves.

This group includes mosses, liverworts, and hornworts. They are non-vascular plants that reproduce through spores and are typically found in moist environments.

This classification includes plants that reproduce using seeds. They have a more advanced structure and include gymnosperms and angiosperms.

This group includes plants like pine, fir, and spruce. They are characterized by cones, which house their seeds.

This group includes flowering plants. They are characterized by flowers that produce seeds and fruits for protection.

Mosses are non-vascular plants that reproduce through spores. They usually grow in clumps, anchoring themselves to the ground with rhizoids (root-like structures).

Liverworts are non-vascular plants with a flat, leaf-like body called a thallus. They reproduce both sexually and asexually.

Hornworts are non-vascular plants with a distinct horn-shaped structure called a sporophyte. They are named after this structure.

Ferns are vascular plants that reproduce through spores. They have leaves (fronds), stems, and roots. The spores are located on the underside of the fronds.

Club mosses are vascular plants that reproduce through spores. They possess true roots and stems, and have small, scale-like leaves.

The cone-like structures on club mosses hold spores. When released, these spores can germinate on suitable soil to form thalli.

Thalli are the gametophyte stage of club mosses. They produce male and female reproductive cells, allowing for sexual reproduction.

The gametophyte stage of club mosses can last up to 15 years before new plants can form. This is a relatively long time compared to other plants.

Conifers are plants that have seeds but don't bear flowers. Their seeds are usually winged and dispersed by wind.

The process of fertilization in conifers occurs when pollen, carried by wind, reaches the ovule.

Angiosperms are flowering plants that produce seeds enclosed in a fruit.

Monocots are angiosperm plants with only one cotyledon in their seed.

Dicots are angiosperm plants with two cotyledons in their seed.

Flowers are the reproductive organs of angiosperms, responsible for sexual reproduction.

The sepals protect the flower bud, while petals attract pollinators. Stamens produce pollen, and the pistil contains the ovary, which turns into fruit.

The process by which pollen from the stamen is transferred to the stigma of the pistil is called pollination.

Plants that reproduce using cones, which are structures that hold seeds. They don't produce flowers or fruits.

Male cones are responsible for producing pollen, which is carried by the wind to female cones. Female cones contain ovules that will develop into seeds after fertilization.

The process starts when a pollen grain from a male cone lands on the scale of a female cone. A pollen tube grows toward the ovule, and sperm cells travel through the tube to fertilize an egg cell.

They are tall, woody plants with a distinctive palm-like appearance. They typically grow in tropical or warm regions, and their thick roots allow them to store water.

A group of seed-bearing plants that are found in diverse environments, from moist tropics to arid deserts. They often grow as shrubs or woody vines.

A unique tree with fan shaped leaves that are not related to most other conifers. It's known for its resistance to pollution.

Cone-bearing plants play a significant role in various ecosystems. They provide habitat for wildlife, purify air, and are a source of timber and other resources.