Science Olympics Ecology 1

a species no longer found anywhere on Earth

Approximately how many species are we losing per hour?

the number of individuals of a specific species in a specific area

Organisms that live off of dead organisms and help to recycle valuable nutrients

has the greatest impact on the biodiversity of systems

ecosystems like coastlines that are part time aquatic and part time terrestrial

process by which water flows over the ground

movement of matter through the biotic and abiotic parts of the environment

Organisms that can make own food

the feeding position of an organism in a food chain

Composition of the Earth's atmosphere includes:

The earth's solid outer shell consists of the mountains, ocean floor, & earth's solid surfaces.

Ar, H2O & CO2 makes up ____of the Earth's atmosphere.

Process by which energy is released from food

Meeting the needs of current generation w/o disrupting abilities of future gen to meet needs

Matter cannot be destroyed

compounds that do not contain both carbon and hydrogen (water, carbon dioxide, ammonia)

Cellular respiration occurs continuously and no _____ is required

Primary Consumers

Process by which the sun's energy is converted into chemical energy

The original source of energy in food

Carnivores (meat eaters) and Omnivores (plant and meat eaters)

Living Components

the term used to describe when an ecosystems conditions are constant over time

Photosynthesis is performed by

This factor effects biodiversity: deforestation, urban and agricultural expansion

Are you familiar with this for the quiz?

process by which water vapours change to liquid

Meat eater

Components of ecosystem ex: light, temperature, soil type

Variation among living organisms from all sources including terrestrial, aquatic ecosystems

Community of organisms & their environment: occurs on the land masses of continents & islands.

The earth's water in all its forms; oceans, lakes, groundwater and clouds.

Are you familiar with this for the test?

a species that is no longer found in one part of Canada, but can be found in others

Producers, consumers, decomposers describes what cycle?

For an ecosystem to be healthy it has to have:

a species close to extirpation or extinction

Non-living components

occurs when an ecosystem is partially destroyed like a forest fire

a species that may become threatened or endangered because of a variety of things

a species that is likely to become endangered if factors that make it vulnerable r not reversed

occurs on soil or rock after disturbance like volcanic eruption where no life previously exists

a community and its abiotic environment.

a body of freshwater that is rich in nutrients usually murky with more insects or weeds

This factor affects biodiversity: non native species has a negative impact on native species

What percent of the world is covered in water?

Our atmosphere moderates ______.

The fuel of life

Detritivore

Organisms at the highest level of a chain, generally these organisms do not have a predator

organisms that must eat other organisms for food

Autotrophs, organisms that are able to make their own food by photosynthesis ex plants

Photosynthesis, respiration, decay, combustion describes what cycle?

This factor effects biodiversity: acid precipitation, poor air quality and oil spills

an aquatic ecosystem with salt water such as oceans and coral reefs

the variety of life in a particular ecosystem

Atmosphere blocks some______.

a group of populations living and interacting with each other in an area.

Plant and meat eater

compounds containing both carbon and hydrogen (food, proteins, sugars, fats)

Plant eater

process by which water turns to water vapour

Communities of organisms that depend on each other & their environment live in bodies of water

a body of freshwater that is low in nutrients usually clear and good for swimming

Components of the ecosystem ex: animals, plants, predation, disease

two individuals competing for the same food source

the abiotic conditions in which a species can survive

Photosynthesis takes place in the ____ of a producer's cells

all nutrients and chemicals must be obtained or produced from chemicals that already exist

Chlorophyll found in the chloroplasts capture the sun's

Taigas, Oceans, Cities and deserts are examples of:

a large geographical region defined by climate (precipitation & temp) w/ biotic & abiotic featu

plays a critical role in the production of  02 and absorption of C02

matter is NOT recycled

organisms form links in a food chain by eating and being eaten creating a

process by which water evaporates from plants

Performed by ALL living organisms

Dodo bird, pearly mussels, bighorn sheep and passenger pigeons have what in common?

Cellular respiration takes place in the _____ of cells

the collection of all the populations, of all the species in an ecosystem

The smallest biome in Canada

____ of the world species live in the ocean.

any factor that restricts the size of population; disease, low food supply, hunting, disasters

More than ____% of the earth's surface is covered in oceans

when we die decomposers break down the organic matter into inorganic matter & release it back 

All organisms in an area that react with each other and the environment

a group of organisms of the same species who live in the same area at the same time.

process by which water in any form falls from the atmosphere to the earth

An aquatic ecosystem such as lakes and streams

This factor effects biodiversity: change in temperature and conditions; melting ice caps

The largest biome in Canada

Organisms that can make their own food

all the members of the same species living in an ecosystem

The area where all living things can exist; animals, plants, micro-organisms.

A self regulated system through which energy and materials are transferred.

organic matter is stored in our bodies after we eat

What is the layer of gasses that surround the earth and extends upwards of 150000000 km ?