Ecology

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What is a carbon reservoir?

A place where carbon is stored.

What important elements make up life?

Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorous

How does carbon dioxide get back into the atmosphere? Select all that apply. It is released as solid waste excreted by animals. It is released when humans burn fossil fuels. It is released by plants and animals through the process of cellular respiration. It is released by plants through the process of photosynthesis.

It is released when humans burn fossil fuels. It is released by plants and animals through the process of cellular respiration.

How does carbon pass from plant to animal and animal to animal?

from feeding

How does a plant get the phosphorus it needs?

from soil

The place where an organism could live is called the _____niche.

fundamental

Ecology literally translates to the study of the

house

what does ecology study

how living things interact with each other AND with their physical (non-living) environment

What does the term biogeochemical cycles mean?

how matter cycles through an ecosystem or the biosphere

Where is phosphorus found in DNA?

on the outside of the molecule

Fertilizer typically contains

phosphorus and nitrogen.

Where does the carbon come from that the plant uses to create biomass?

the atmosphere (CO2)

what does "fixing carbon" mean

the carbon atoms are incorporated into the tissues of the plant.

In the history of Earth, what fundamental process repeats itself? The formation of matter. The destruction of matter. The recycling of matter.

The recycling of matter.

What is the major ingredient of all organic molecules

Carbon

A lichen is symbiotic relationship between ______________________.

algae and a fungus

Phosphorous is important for which biomolecules?

ATP and DNA

Why is carbon the "best" element?

Because it is so versatile and is a building element of life

What do we call the cycles that recycle matter in the biosphere and geosphere, the living and non-living parts of the Earth?

Biogeochemical cycles

Which of the following are found in the rich soil made from composting and are very important for plants and life in general? Select all that apply Nitrogen Water Oxygen Carbon

Nitrogen Carbon

abiotic factors

Non-living things

Nitrogen is an important element in what 2 biomolecules. (Choose all that apply) Nuleic Acids Proteins Carbohydrates Lipids

Nucleic Acids Proteins

What is a habitat?

Place where an organism lives and it includes both biotic and abiotic factors

How is the phosphorus cycle different from the carbon and nitrogen cycles?

Phosphorus is found in rocks.

What geochemical cycle recycles hydrogen and oxygen?

The water cycle

a limiting biotic factor is...

a living thing (prey) that organisms are in competition for to survive

A limiting abiotic factor is...

a non-living thing (ex: sunlight) that organisms are in competition for to survive

Nitrogen is fixed by what type of organism

bacteria

What is needed to make the nitrogen available to other organisms?

bacteria

What organism converts nitrogen in the soil back into nitrogen gas?

bacteria

Using too much fertilizer can add too much nitrogen to aquatic ecosystems. This can cause an algal bloom which

blocks sunlight and starves things of oxygen

Hydrocarbons (fossil fuels) are formed primarily from what organism? any autotroph all consumers dead plants living plants

dead plants

biotic factors

living things

Is it possible for two species to share the same niche?

no

Is it still a secondary consumer if it eats other secondary consumers

yes, they can still be considered a secondary consumer since they eat primary consumers in addition to eating other secondary consumers.


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