Biomes
This biome includes oceans, rivers, lakes, and ponds.
Aquatic
The original source of energy that fuels almost every food chain.
Sun
The process where pollen is transferred from one flower to another.
Pollination
Plants might use these for water storage.
Thick stems or leaves
When a plant stem bends toward sunlight.
Positive phototropism
This biome receives very little rainfall, experiences extreme temperatures, and is home to plants like cacti.
Desert
An animal that eats only plants.
Herbivore
The process plants use to make glucose using sunlight, water, and carbon dioxide.
Photosynthesis
These can be a defense against some predators
Thorns or spines
When roots grow toward a water source.
Positive hydrotropism
This biome has many trees, receives plenty of rainfall, and is home to animals like deer and bears.
Forest
An organism that can make its own food using sunlight.
Autotroph
This plant function allows plants to produce offspring through seeds, spores, or other methods.
Reproduction
This adaptation allows vines to climb upward.
Tendrils
When plant roots grow downward into the Earth.
Positive geotropism
This biome is covered mostly in grasses and has few trees because of limited rainfall.
Grassland
An organism that must eat other organisms for energy.
Heterotroph
The process in which plants release water vapor through tiny openings in their leaves.
Transpiration
Some plants do this during dry seasons to reduce water loss
Drop leaves
When roots grow away from light instead of toward it.
Negative phototropism
This cold biome has permanently frozen ground called permafrost and very few trees.
Tundra
The feeding position an organism occupies in a food chain or food web.
Trophic level
The process where cells break down glucose to release energy.
Cellular respiration
Some specialized plants that live in nutrient-poor soil have adapted to get energy from this unusual source.
Insects
When a plant stem grows upward, away from gravity.
Negative geotropism