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slide2

Bio.2.1.1 Analyze the flow of energy and cycling of matter (water, carbon, nitrogen and oxygen) through ecosystems relating the significance of each to maintaining the health and sustainability of an ecosystem. Bio.2.1.3 Explain various ways organisms interact with each other (including predation, competition, parasitism, mutualism) and with their environments resulting in stability within ecosystems.

place in order from smallest to largest ecosystem species community population
Place in order from smallest to largest: ecosystem, species, community, population
  • Species
  • Population
  • Community
  • Ecosystem
one organism is helped and the other is hurt
One organism is helped and the other is hurt
  • parasitism
  • Examples:
  • Tapeworms
  • Ticks
  • Fleas
  • Viruses
one organism is helped and one is unaffected
One organism is helped and one is unaffected
  • commensalism
  • Examples
  • orchids on trees
  • barnacles on a whale
  • Cyanobacteria on a polar bear
both are helped
Both are helped
  • Mutualism
  • Examples
  • Lichens – algae and fungi
  • sea anemone and clownfish
  • Cleaner shrimp and sharks
slide12

Bio.2.1.4 Explain why ecosystems can be relatively stable over hundreds or thousands of years, even though populations may fluctuate (emphasizing availability of food, availability of shelter, number of predators and disease).

slide13
Which does the ecosystem have to have more of at first? _____ What happens to the prey population as predators increase? ______

Prey

Prey would decrease

non living factors in environment
Non-living factors in environment
  • abiotic factors
  • Examples
  • Temperature
  • acidity of soil
  • Soil
  • Water
  • Oxygen
  • nutrients
living factors in the environment
Living factors in the environment
  • biotic factors
  • Examples
  • Animals
  • Plants
  • Bacteria
  • Fungi
  • Protists
the total number of species a population can support is the it is reached because of
The total number of species a population can support is the _____. It is reached because of ______.
  • carrying capacity
  • limiting factors
extreme temperature changes natural disasters destruction of a habitat are limiting factor
Extreme temperature changes, natural disasters, destruction of a habitat are ___limiting factor
  • density-independent
which age bracket has the largest percentage of people
Which age bracket has the largest percentage of people?
  • 40-50 (baby boomers) This is a fairly stable population
predictable changes in a community overtime is called it will continue until a is reached
Predictable changes in a community overtime is called ______. It will continue until a ____is reached.
  • Succession
  • Climax community
succession on rock like after a volcanic eruption of after a glacier recedes is called
Succession on rock like after a volcanic eruption of after a glacier recedes is called _________.
  • primary succession
the first organisms to grow are called the an example on rock is a
The first organisms to grow are called the______. An example on rock is a ______.
  • pioneer species
  • lichen
succession on soil is called first organisms to grow are
Succession on soil is called ______. First organisms to grow are ___.
  • secondary succession
  • grasses and weeds
slide27

Organisms with the most energy in a food web are the ____. They have the greatest impact on the ecosystem because without them there would not be food and energy for the others.

  • Producers (autotrophs)
slide29
Producers take in the atmospheric gas _____ and produce _____ an organic compound and _____ which is released into the atmosphere.
  • carbon dioxide
  • Glucose
  • oxygen
slide30
All organisms take in the atmospheric gas ____and use it to break down ______ in the process called _________which releases ______.
  • Oxygen
  • Glucose
  • cellular respiration
  • carbon dioxide
decomposers like and breakdown organic matter and put the nutrients back into the soil
Decomposers like ____ and ______ breakdown organic matter and put the nutrients back into the soil.
  • Bacteria
  • Fungi
oxygen is necessary for and
Oxygen is necessary for ____, _____, and _______.
  • Respiration
  • Combustion
  • Decomposition
the most abundant gas in the air you breathe is but your body cannot process it to make and
The most abundant gas in the air you breathe is _____ but your body cannot process it to make ____ and _______.
  • Nitrogen
  • Proteins
  • nucleic acids
slide35

_____ in the soil convert nitrogen gas into the usable form of ammonia, nitrates, and nitrites so plants can use it. We get the correct form of nitrogen we need from the plants or animals that have eaten plants.

  • Bacteria
who are the primary consumers
Who are the primary consumers?

Worm

Snail

Rabbit

bird (when eating grass)

who are the secondary consumers
Who are the secondary consumers?

bird (when eating the worm)

Lizard

eagle (when eating rabbit)

what happens if the bird population is reduced
What happens if the bird population is reduced?

Eagles eat more lizards and rabbits making them decrease

Snail population increases

what trophic level does the lizard belong to
What trophic level does the lizard belong to?

Third (count auto and heterotrophs)

which component was left out of the food web
Which component was left out of the food web?

decomposers

(if it was there, all arrows would point toward it)

slide51

Bio.2.2.1 Infer how human activities (including population growth, pollution, global warming, burning of fossil fuels, habitat destruction and introduction of nonnative species) may impact the environment. Bio.2.2.2 Explain how the use, protection and conservation of natural resources by humans impact the environment from one generation to the next.

impact the environment the most due to alterations in environments and use of natural resources
______ impact the environment the most due to alterations in environments and use of natural resources.
  • Humans
harmful substances released into the soil water and air is called which threatens all organisms
Harmful substances released into the soil, water, and air is called _______ which threatens all organisms.
  • pollution
slide54

Agricultural or sewage runs off into the freshwater ecosystem and can cause rapid growth of an algal bloom and eventually oxygen depletion. This is called ______ and will eventually cause the body of water to fill in.

  • eutrophication
slide55

Building cities takes away organisms’ habitats causing them to move or die. Overhunting and overfishing can also lead to a decrease in ________.

  • biodiversity
slide56

_______ will cause the oxygen and water levels in the atmosphere to decrease and the carbon dioxide levels to increase. It also takes away an organisms’ habitat.

  • Deforestation
sustaining resources is important because some natural resources are
Sustaining resources is important because some natural resources are _______________.
  • nonrenewable
slide58

The ______helps to control and stabilize the temperature of Earth by trapping infrared radiation. The burning of _____ has increased the amount of _________in the atmosphere causing global warming.

  • greenhouse effect
  • fossil fuels
  • carbon dioxide
slide59

Burning of fossil fuels also releases sulfur dioxides and nitrogen oxides in the atmosphere. When these mix with precipitation, ____ is formed which affects the forest and the freshwater ecosystem.

  • acid rain
slide60
The ozone layer blocks ultraviolet rays from the sun. _____ have caused ozone depletion increasing skin cancer and mutations.
  • Chlorofluorocarbons
slide62

Items put in landfills should be ____ or able to be broken down by decomposers. Otherwise we should ____, _____, and _______. Conserving fuel and electricity reduce your carbon footprint.

  • Biodegradable
  • Reduce
  • Reuse
  • Recycle
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