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Test your basic knowledge |
PCAT Biology Ecology
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Subjects
:
pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
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study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Recycle water - oxygen - and phosphorus
Lithosphere
Food Chain
Other Cycles
Desert animals
2. Without a constant input of energy from the sun - an ecosystem would soon run down - as food is transferred from one level of the food chain to the next - a transfer of energy occurs
Predators
Temperate Deciduous Forest Animals
Food Pyramids
Littoral Zone Populations
3. One species may be competitively superior to the other and drive the second to extinction
Biotic Environment
Food Chain
Producers
Competition Same Niche
4. Animals that consume dead animals
Desert animals
Scavengers
Material Cycles
Tropical Rain Forest Plants
5. Each member of a food chain uses some of the energy it obtains from its food for its own metabolism and loses some additional energy in the form of heat
Pyramid of Energy
Scavengers
Littoral Zone Populations
Taiga Animals
6. Receive less than ten inches of rain each year; the rain is concentrated within a few heavy cloudbursts -ex: Sahara in Africa and Gobi in Asia
Aquatic Biomes
Desert Biome
Competition Same Niche
Intertidal Zone Population
7. Includes the community and the environment and usually all five kingdoms
Coimax Vegetatioin
Intertidal Zone
Ecosystem
Dominant Species
8. Include reproduction and protection from predators and destructive weather
Abiotic (Physical) Environment
Primary Consumers
Cohesive Force
Ecology
9. Needs constant energy source and cycling of materials between the living system
Competition Same Niche 2
Organism
Nature of Biomes
Conditions for stability in an Ecosystem
10. Includes climate - temperature - availability of light and water - and the local topology
Littoral Zone
Saprophytes
Abiotic (Physical) Environment
Aphotic Zone
11. Animals eat plants and use the digested nutrients to form carbohydrates - fats - and proteins characteristic of the species. a part of these organic compounds is used as fuel in respiration in plants and animals
Pioneer Organism
Grassland Biome
Pelagic Zone
Carbon Cycle 2
12. Polar bears - musk oxen - and arctic hens
Thundra Animals
Pyramid of Energy
Heterotrophs
Substratum-texture
13. Active swimmers such as fish - sharks - or whales that feed on plankton and smaller fish
Hemeothermic (Warm Blooded)
Intertidal Zone Population
Competition Same Niche
Nekton
14. In the ocean - the top layer thorugh which light can penetrate - is where all aquatic photosynthetic activity takes place
Marine Biomes
Second Law of Thermodynamics
Photic Zone
Desert animals
15. Plants growing on other plants - trees grow closely together; sunlight hardly reaches the forest floor
Competition Same Niche 3
Epiphytes
Temperate Deciduous Forest Animals
Communities
16. Algae - sponges - clams - snails - sea urchins - starfish - and crabs
Nitrogen cycle 1
Herbivores
Coimax Vegetatioin
Intertidal Zone Population
17. Region exposed to low tides that undergoes variations in temperature and periods of dryness
Photic Zone animals
Nitrogen Cycle 2
Aphotic Zone
Intertidal Zone
18. Links between oceans and land
Epiphytes
Marshes
Competition Same Niche 3
Primary Consumers
19. Group of organisms of the same species living together in a given location
Grassland Animals
Climate and weather
Nitrogen Cycle 4
Population
20. Live in burrows had few birds and mammals are found except those which have developed adaptations for maintaining constant body temperatures
Hypotonic
Nekton
Aphotic Zone animals
Desert animals
21. Have cold winters - warm summers - and moderate rainfall -found in the Northeast and Central-Eastern United States and Central Europe
Omnivores
Food Web
Temperate Deciduous Forest Biome
Nitrogen Cycle 3
22. Animals that consume green plants (herbivores)
Environmental Factors
Deep-sea Organisms
Primary Consumers
Tundra Plants
23. Made into nitrites by chemosynthetic bacteria and then to usable nitrates by nitrifying bacteria
Photic Zone
Marshes
Nitrified
Temperate Deciduous Forest Animals
24. When a parasite benefits at the expense of the host
Substratum-pH
Temperate Coniferous Plants
Physical Environment-Temperature
Parasitism
25. Consists of populations of different plants and animal species interacting with each other in a given environment
Osmoregulation
Communities
Material Cycles
Nitrogen Cycle 4
26. Oceans connect to form one continuous body of water - which controls the earth's temperature by absorbing solar heat
Nitrogen Cycle 5
Mutualims
Marine Biomes
Grassland Animals
27. Must be maintained at an optimal level -organisms have adaptations necessary for protection against extremes
Physical Environment-Temperature
Primary Consumers
Pioneer Organism
Organism
28. Individual unit of an ecological system - but the organism itself is composed of smaller units -organs >tissues >cells >molecules >atoms > subatomic particles
Nitrogen Cycle 4
Tropical Rain Forest Biome
Carnivores
Organism
29. Any group of similar organisms that are capable of reproducing
Taiga Plants
Biotic Environment
Tundra Biome
Species
30. The major component of the internal environment of all living things
Coimax Vegetatioin
Scavengers
Physical Environment- Water
Hydrosphere
31. Animals that eat both plants and animals
Benthos
Taiga Biome
Omnivores
Nitrogen Cycle 4
32. Regiong beneatht he photic zone that receives no light
Primary Consumers
Aphotic Zone
Parasitism
Biome
33. Animals that consume primary consumers (carnivores)
Carbon Cycle 3
Secondary Consumers
Ecology
Taiga Biome
34. Region on the continental shelf that contains ocean area with depths up to 600 feet and extends several hundred miles from the shores
Grassland Biome
Littoral Zone
Tundra Biome
Parasitism
35. Animals eat the plants and synthesize specific animal proteins form the plant proteins. both plants and animals give off wastes and eventually die
Coimax Vegetatioin
Physical Environment-Temperature
Nitrogen Cycle 3
Hypotonic
36. Trees such as beech - maple - oaks - and willows shed their leaves during cold winters months
Nitrogen Cycle 3
Temperate Deciduous Forest Plants
Biome
Photic Zone animals
37. Integrated system of species that are dependent upon one another for survival
Obligatory
Parasitism
Community
Nekton
38. Gaseous CO2 enters the living world when plants use it to produce glucose via photosynthesis. The carbon atoms in CO2 are bonded to hydrogen and other carbon atoms. the plant uses the glucose to make starch - proteins - and fat
Population
Coimax Vegetatioin
Carbon Cycle 1
Saprophytes
39. When one organism is benefited by the association and the other is not affected
Nitrogen Cycle 4
Commensalism
Omnivores
Tertiary Consumers
40. Cold - dry - and inhabited by fir - pine - and spruce trees -much vegetation has evolved adaptations for water conservation such as needle-shaped leaves -Extreme Northern Part of the US and in Southern Canada
Temperate Coniferous Forest Biome
Aphotic Zone
Abiotic (Physical) Environment
Secondary Consumers
41. (living) includes all living things that directly or indirectly influence the life of the organism including the relationships that exist between organisms
Biotic Environment
Thundra Animals
Grassland Animals
Tropical Rain Forest Biome
42. Treeless - frozen plain found between the taiga lands and the northern ice sheets - very short summer and thus a very short growing season during which time the ground becomes wet and marshy
Photic zone
Substratum-texture
Producers
Tundra Biome
43. Animals that consume only plants or plant foods
Herbivores
Niche
Saprophytes
Biotic Environment
44. Because organisms at the upper levels of the food chain derive their food energy from organisms at lower levels - and because energy is lost from one level to the next - each level can support a successively smaller biomass
Physical Environment-Temperature
Intertidal Zone
Desert Plants
Pyramid of Mass
45. An essential component of amino acids and nucleic acids - which are the building blocks of all living things
Secondary Consumers
Nitrogen
Second Law of Thermodynamics
Other Cycles
46. Determined by the same decisive factors-temperatures and rainfall
Climax Community
Dentrified
Nature of Biomes
Successive Communities
47. The oceans
Aquatic Biomes
Hydrosphere
Competition Same Niche 3
Taiga Biome
48. Frozen area with no vegetation and terrestrial animals -animals that do inhabit polar regions generally live near the polar oceans
Temperate Deciduous Forest Animals
Polar Region
Marshes
Osmoregulation
49. Receive less rainfall than the temperate forests - have long - cold winters - and are inhabited by single coniferous tree-the spruce -extreme northern parts of Canada and Russia
Biotic Community
Nature of Biomes
Sere
Taiga Biome
50. Includes all portions of the planet that support life -the atmosphere - the lithosphere - and the hydrosphere
Hemeothermic (Warm Blooded)
Biosphere
Herbivores
Tundra Biome
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