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40 Cards in this Set
- Front
- Back
Certain bacteria cannot grow if the pH drops below what? |
5 The pH level is alimiting factor for these bacteria. |
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An organism that is active during the day is called what? |
diurnal |
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Morning glories open in the morning and close at night. This is an example of what kind of rhythm? |
circadian rhythm |
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Energy is or is not recycled in an ecosystem |
is not |
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Spiders are what kind of organism? |
independent |
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Predator is to prey as parasite is to what? |
Host |
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Name an example of a parasite |
Tapeworms |
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What kind of trees lose their leaves during nongrowng seasons? |
Deciduous trees |
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What does the understory level of a rainforest consists of?
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small trees, bushes, and largeleafed plants |
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Organisms that are free-swimming are known as what? |
Nekton organisms |
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Animals that rest on or attach to the bottom of a pondor lake are known as what kind of organism? |
Benthos organisms |
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What do Herbivores and Carnivores eat? |
Herbivore - eats only plants Carnivore - Eats meat/ Omnivore - eats bothplants and meat |
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A species that might soon become extinct is called what? |
endangered |
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Attempts to preserve and wisely use the natural resourcesof the earth is known as? |
Conservation |
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Name types of fossil fuels? |
coal, oil, and natural gas |
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The brain is in what position relative to the heart? |
Superior (above) |
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What is Dermis? |
a thick layer of skin that contains many blood vessels, nerve receptors, and hair follicles. Under the dermis is the subcutaneous layer. |
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Name two ways the skin protects itself. |
Callus' and blisters |
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Where is marrow found? |
in the central cavity of many bones |
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Give an example of a hinge joint in the body |
elbow |
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What is muscle tissue in the heart called? |
cardiac muscle and striated muscle |
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What gas is used in cellular respiration? |
Oxygen |
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Name the chemicals produced by leukocytes that attack pathogens |
Antibodies |
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What is the cause one third of all deaths in the US? |
Cardiovascular disease |
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The smallest blood vessels in our body are called what? |
capillaries |
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What is the average number a heart beats per minute |
70 |
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A heart that is not beating properly is said to have ________________ ? |
arrhythmia |
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The amount of pressure the blood puts on artery walls is known as? |
Blood Pressure |
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What is the name of the structure in the kidney that filters wastes from the blood? |
Nephron |
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Pathway air travels through the respiratory system: 1.mouth 2. 3. 4. 5. 6. |
2.Iarynx
3.trachea 4.bronchus 5.bronchiole 6.alveoli |
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When you inhale, your diaphragm does what? |
contracts |
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When you inhale the size of your thorax _____________ ? |
increases |
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Cold and flu viruses are difficult to control because what? |
they mutate frequently |
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Which is the longest digestive organ |
the small intestine |
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Where are villa located? |
the inner surface of the small intestine |
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Which lobe controls consciousness and primary body movements? |
Frontal |
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__________ ___________ carry impulses from the spinal cord to the muscles of the arm |
Spinal nerves |
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A nearsighted person cannot clearly focus on things _______ from him |
far |
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Glaucoma is caused by a buildup of pressure in the _____________ |
eyeball |
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The ______________ tube connects the middle ear with the pharynx |
eustachian |