quiet ball
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Quiet Ball. Semester Exam Review 7 th grade. Why do ecosystems not need a constant supply of matter?. Because matter is constantly recycled. How do organic compounds differ from inorganic compounds?. All organic compounds contain Carbon . - PowerPoint PPT PresentationTRANSCRIPT
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Quiet Ball
Semester Exam Review 7th grade
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Why do ecosystems not need a constant supply of matter?
Because matter is constantly recycled
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How do organic compounds differ from inorganic compounds?
All organic compounds contain Carbon
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What is the land called that drains water into tributaries?
Watershed
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What is the source of energy in a food
web? The Sun
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What can cause erosion to occur?
Wind Water Ice
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What other catastrophic events could occur from a
volcano? Landslide Earthquake Wildfire
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When identifying an organism using a dichotomous key, how many choices
should be with each step?
Two
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How is energy transferred during photosynthesis?
Radiant energy is transformed into chemical energy.
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What are examples of tropisms – things plants will respond
to? Gravitropism (Geotropism) – response to gravity Phototropism – response to light Thermotropism – response to temperature
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What does a secondary
consumer eat? Omnivore/Carnivore- eat animals A primary consumer which eats only
plants – A herbivore
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What is the order of ecological organization
beginning with organism?
Organism, population, community, ecosystem, biosphere
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What is the pioneer species in primary
succession? Lichens
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What belongs in the energy pyramid?
A = producers B = primary consumers C = secondary consumers A = 100% autotrophs B = 10% herbivores C = 1% carnivores
A
B
C
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In a food web, what do plants provide
for the consumers? Energy
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When an animal eats a plant, what
happens to the sugar?
The chemical energy gets converted into others forms of energy
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What do Fungi and bacteria have in
common? They recycle dead organic material
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What is the smallest level of ecological
organization? Organism – an individual member of a
species
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What color fur will allow a rabbit to
survive in an Arctic climate and why?
White fur – so it can hide from predators
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How do most birds react to seasonal
change? They Migrate
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If dark moths have an advantage in hiding from predators what
makes them most FIT? Coloration They have a better chance of surviving to
produce dark-colored offspring and dark moths will become more abundant.
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What type of water will not affect
oceans after a rain? Groundwater – this water seeps into
the ground and gets stored in aquifers.
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What is most likely to grow on bare rock
after a volcanic eruption?
Lichens
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Having more species in an area
will result in?
More links in food chains and more stability
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More habitats for different species
Having a variety of ecosystems would
lead to?
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It is a mixture of two parents ½ genes come from each parent They exhibit traits from both parents Leads to more diversity
If organisms have two parents, what could you say about the
offspring?
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Sharp claws Sharp pointed teeth Small eyes
What adaptations would you find in a
predator?
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GG x gg
If a brown rat and a white rat have only brown babies
what are the most likely genotypes of the parents?
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What restricts the exploration of our solar system the
most.? The cost
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25 percent
If Gg xGg cross what percent is
likely to be white?
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Genes
What is found within a chromosome and has information about particular hereditary traits?
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Blonde or brown
If a father has blonde hair and mother has brown, what are the possible hair color of
the children?
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What characteristics
allow life to live on Earth?
The presence of water Proximity to the sun Composition and existence of an
atmosphere