4 th six weeks assessment review
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T u e s d a y 2 / 19 / 13 Pick up a study guide & the clicker with the number next to your name. Please be READY TO GO when the bell rings Turn in your books & HIV Labs!!!. 4 th SIX WEEKS ASSESSMENT REVIEW. - PowerPoint PPT PresentationTRANSCRIPT
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Tuesday 2/19/13Pick up a study guide & the clicker
with the number next to your name. Please be READY TO GO when the bell
rings
Turn in your books & HIV Labs!!!
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4th SIX WEEKS ASSESSMENT REVIEW
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In binomial nomenclature, which two classification levels make up
the scientific name?
Genus & Species
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Which species is the most closely related
to the sea lion?
seals
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Which two species share the least characteristics?
A. raccoons and weasels
B. otters and FelidsOtters & Felids
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Using the hierarchy of classification to the right, two species are the most similar if they belong to the
same _________.
Genus
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True or False: Crocodiles have more traits in common with mammals
than they do with birds?False; birds & crocodiles are on the
same evolutionary branch
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In the nitrogen cycle, what organisms that live in soil and on roots fix or make usable by plants the greatest amount of nitrogen?
Bacteria fix the most nitrogen.
Are bacteria biotic or abiotic?Biotic (living)
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What would happen if decomposers like earthworms were removed from an
ecosystem?
The cycle will be disrupted and slowed
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If a bee eats nectar from flowers and pollinates the flowers at the same
time, what type of relationship would it be?
Mutualism, they both get something
good.
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How is a tick feeding on a dog considered to be
parasitic?
The tick takes away nutrients from the dog.
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Write in the percentage of energy at each level in the
food chain.
100%
BirdGrass Grasshopper Snake
10% 1% .1%
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What would happen if the bird population increased?
The grasshoppers would decrease and the grass and
snakes would increase
BirdGrass Grasshopper Snake
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What is the role of the bird?
BirdGrass Grasshopper Snake
Producer
1o Consumer
2o Consumer
3o Consumer
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Which level contains the herbivores?
BirdGrass Grasshopper Snake
Where do herbivores get their energy from?
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What trophic level of a food web would be the most damaging if it
died out?
producers
Why?
All the energy in the system starts with the producers. All other levels would
run out of food eventually.
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Which level provides the most energy?
Grass
Grasshopper
Raccoon
Wolf
Producers
1st Consumer
2nd Consumer
3rd Consumer
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If there are 50 kilocalories of energy at the tertiary consumer level in a
habitat, how many kilocalories would be at the producer level?
50 tertiary500 secondary5,000 primary
50,000 producer
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How much energy is passed to the next level?
10%
What happens to the other 90%?
Used by the organisms at that level & given off as heat
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Which organism(s) can be both a 2nd & 3rd level consumer?Coyote, Hawk, Roadrunner
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How are Archaebacteria & Eubacteria different from the other
kingdoms of life?
Unicellular & Prokaryotes
Which bacteria kingdom consists of the “extremists” who can live in
harsh environments?
Archaebacteria(ancient bacteria)
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How do vaccines work?
They induce the body to recognize the pathogen as foreign.
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What does AIDs do to a person’s immune system?
Weakens it
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What part of the body does HIV attack?
Immune System
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What type of cells does HIV attack?
T-lymphocytes
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True or False: A virus is larger than a bacteria cell.
False; viruses are the smallest particles & ALL are harmful
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How are viruses and prokaryotes different?
A virus does not replicate on its own, but prokaryotic cells do replicate on
their own.
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True or False: Antibiotics can treat both viruses & bacteria.
False; antibiotics ONLY work on bacteria
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True or False: Both viruses & bacteria have proteins.
True; viruses have a protein coat called a CAPSID
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True or False: A virus does not have a nucleus, but bacteria do
have nuclei.
False; bacteria are PROKARYOTIC
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True or False: Both viruses & bacteria have genetic material.
True; viruses can have DNA or RNA