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32 terms

7th Grade Life Science Final

plants & ecosystems
STUDY
PLAY
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