7th Grade Life Science Final

32 terms by lschellm 

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plants & ecosystems

Vascular

Plants that have tube-like structures that carry water, nutrients and other substances through-out the plant.

Non-Vascular

do not have tube-like structures and use other ways to move water nutrients and other substances.

Monocot

Monocot's seeds have one food storage unit.
Some Monocots are Grains, bananas, pineapples and lilies.

Dicot

Dicot's seeds have two food storage units. Some Dicots are beans, apples and oranges and many shade trees.

Pistil

A PISTIL has a sticky STIGMA, a long stalklike STYLE and an OVARY which contains OVULES

Stamen

A stamen consists of a thin stalk called the FILAMENT and an ANTHER . POLLEN forms in the ANTHER. SPERM develop in pollen.

Biome

Geographic areas that have similar climates and ecosystems. (Desert, Tropical rainforest, Temperate rainforest, Grassland, Temperate deciduous forest, Tundra.)

Biotic

the living organisms in an ecosystem

Abiotic

nonliving features of the environment. (air, water, sunlight, soil, temperature, climate)

consumer

a primary consumer feed directly on producers
a secondary consumer feeds on primary consumers
A tertiary consumer feeds on secondary consumers.

Decomposer

An organism that breaks down wastes and dead organisms. Worms, mushrooms etc.

Plant

A plant needs sunlight and carbon dioxide for photosynthesis. All need water many have Chlorophyll, roots or a root-like structure. They have cell walls and a central vacuole.

Plant Phylum

Plant Phylums are called divisions.
Mosses, Liverwort, Hornwort

Moss

A Plant Phylum; non-vascular, green, has rhizoids instead of roots. Reproduce by spores.

Liverwort

A Plant Phylum; non-vascular, rootless, flat leaf-like, have one celled rhizoids. Reproduce by spores.

Hornwort

A Plant Phylum; non-vascular, very small, only one chloroplast in each cell. Reproduce by spores.

Roots

anchor the plant in the ground, absorb water and minerals from soil, and sometimes store food

stems

carries substances between the plant's roots and leaves. provides support and holds up the leaves so they are exposed to the sun

leaves

plant organisms that trap light and make food for the plant

water cycle

the continuous cycle of water through an ecosystem, which involves evaporation, transpiration, condensation, and precipitation

desert

a region that has little or no vegetation, long periods without rain, and extreme temperatures; usually found in warm climates

tropical rainforest

biome near the equator with warm climate wet weather and lush plant growth.

temperate rainforest

wettest coastal forests. cool, rainy forest often in fog.

temperate deciduous forest

Forest in a temperate region, characterized by trees that drop their leaves annually.

grassland

A biome containing many grasses but few trees and having low to moderate rainfall.

tundra

a vast, level, treeless plain in the arctic regions. The ground beneath the surface of the tundras is frozen even in summer

fire and ecosystems

some ecosystems are dependent on fire for their reproduction and regeneration; ex: grasslands, many coniferous forests in the Western United States

Ferns

Seedless vascular plants reproduce using spores. They have stems leaves (called fronds) and roots.

Club moss

Seedless Vascular plant, reproduces using spores. they have stems, needles and roots.

Horsetail

Seedless vascular plant
Hollow stem with scale-like leaves
End of stem produces spores

Gymnosperm

Vascular plants that produce seeds that are not protected by fruit.

Angiosperm

flowering vascular plants that produce fruits containing one or more seeds

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