Ecosystems 1
A dead log represents this part of a moose's environemt.
What is biotic
All plants need this to survive
What is light?
Parasitism, mutualism and commensalism are three main types of what
What are symbiotic relationships?
Ecologists model the gradual loss of energy in food chains using this
What are energy pyramids?
These are materials and products found in nature that people use to meet their basic needs such as water, oil, lumber, fish or land
What are natural resources?
This one word describes all of the following organisms, ant, frog, mushrooms, and black spruce.
What are organisms.
For a tropical fish that needs warm water to survive; water at a temperature of 1 degee C is outside of its __________
What is range of tolerance?
Animals which must get their foods from the biotic envronment by consuming other organism are called ...
What are consumers?
The only source of ________ used by all living things is matter found on Earth. ____________ are continuously recycled through the biotic and abiotic environment.
What are nutrient?
When there are no longer any living individuals of a species anywhere in the world, that species is said to be ______
What is extinct?
What are adaptations?
A group of organisms that can reproduce among themselves to produce offspring of the same type that can also reproduce is known as ___________
What is a species?
Plants are called producers for this reason
What is they produce their own food?
Species that can establish themselves in areas with little or no soil and few nutrients are called ______
What are pioneer species?
Species that spread beyond their natural range into new locations as a result of human activity are called ___________
What are introduced species?
This is known as a particular place where an organism lives.
What is habitat?
A group of individuals of the same species that live together in one ecosystem is known as this.
What is a population?
List three ways that mircoorganisms can be kept out of food
What are, freezing, canning, pickling, vacuum packing, freeze-drying, radiation, drying, pickling, sugaring, salting,
A diverse group of species that form a stable ecosystem which can remain relatively unchanged for centuries; the northern boreal forest is an example of this.
What is a climax community?
These are substances that cause harm to the air, soil, water or living things.
Water, rocks, sunlight and air are all examples of this.
What are abiotic factors?
Being a top predator, hunting seals on ice describes this in relation to a polar bear
What is a niche?
In all food chains the energy flows in this direction
What is from producers to consumers and from herbivores to carnivores
The re-growth of a community in an area that has changed dramatically after a disturbance such as a fire is an example of _____________
What is secondary succession?
This report outlines how an activity will affect the environment
What is an environmental impact assessment?