Migration
The seasonal movement of animals from one region to another in search of food, mates, or favorable conditions.
What is migration?
A protected area of land, water, or sea, where resources are conserved.
What is a nature reserve or national park?
The variety of organisms within an ecosystem.
What is biodiversity?
A factor, such as food or space, that restricts the growth or abundance of a population.
What is a limiting factor?
The clearing of forests for other land uses, such as agriculture and logging.
What is deforestation?
Many birds, such as ducks and geese, fly in this v-shaped arrangement during migration, which helps them conserve energy.
What is a V-formation?
This process involves planting new trees in an area where trees have been removed.
What is reforestation?
Biodiversity refers to all the different _______ living on Earth.
What is species?
The number or quantity of people or things that can be conveyed or held by a vehicle or container.
What is carrying capacity?
This occurs when human activities, such as fossil fuel burning, release greenhouse gases that trap heat in the atmosphere.
What is climate change or the greenhouse effect?
These two seasons are often when animals migrate.
What is winter and fall (autumn)?
The practice of saving resources, such as water and soil, to reduce negative impacts on a habitat.
What is conservation?
An ecosystem with greater biodiversity is more stable and better able to adapt to environmental changes.
What is ecosystem stability?
This is the term used to described parts of a habitat that are living, once living and interact with an organism
What is biotic factor
Any biological, physical, or chemical substance released into the environment that has a harmful effect on living organisms.
What is pollution?
Animals use these to guide them during migration.
What are senses?
This was established in 1973, as a legal way to protect species from extinction.
What is U.S. Endangered Species Act?
An ecosystem is the community in which all the biotic and ______ elements interact.
What is abiotic ?
All animals take in this and exhale this when they breathe.
What is oxygen, carbon dioxide?
The excessive accumulation of nutrients, often from fertilizer runoff, that leads to dense plant growth and a lack of oxygen in a body of water.
What is nutrient enrichment?
An animal that naturally preys on others.
What is a predator?
A way that habitats have been protected.
What is national wildlife preserves?
A biome is a large group of _______.
What is ecosystems?
This process describes how plants make food, by taking in carbon dioxide, sunlight and water.
What is photosynthesis?
Non-native species introduced by human activity that can outcompete native species and harm ecosystems.
What are invasive species?