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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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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. Animals that consume dead animals
Scavengers
Predator-Prey relationship
Freshwater Biomes
Other Cycles
2. Region on the continental shelf that contains ocean area with depths up to 600 feet and extends several hundred miles from the shores
Temperate Deciduous Forest Plants
Species
Littoral Zone
Tropical Rain Forest Animals
3. Energy is transferred from the original sources in green plants through a series o organisms with repeated stages of consumption and finally decomposition
Parasitism
Environmental Factors
Food Chain
Tertiary Consumers
4. Plants growing on other plants - trees grow closely together; sunlight hardly reaches the forest floor
Epiphytes
Carbon Cycle 2
Biome
Intertidal Zone Population
5. Include reproduction and protection from predators and destructive weather
Hypotonic
Substratum-pH
Cohesive Force
Community
6. Group of organisms of the same species living together in a given location
Environment
Population
Substratum-texture
Carbon Cycle 3
7. Developed long legs and many are hoofed
Grassland Animals
Aphotic Zone
Carbon Cycle 3
Hydrosphere
8. When a parasite benefits at the expense of the host
Parasitism
Cohesive Force
Substratum-Minerals
Herbivores
9. One species may be competitively superior to the other and drive the second to extinction
Nekton
Temperate Coniferous Plants
Competition Same Niche
Pelagic Zone
10. (living) includes all living things that directly or indirectly influence the life of the organism including the relationships that exist between organisms
Aphotic Zone animals
Physical Environment-Temperature
Biotic Environment
Tundra Plants
11. 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
Intertidal Zone Population
Photic Zone animals
Dentrified
12. 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
Grassland Animals
Nitrogen Cycle 3
Freshwater Biomes
Tundra Biome
13. Animals eat the plants and synthesize specific animal proteins form the plant proteins. both plants and animals give off wastes and eventually die
Physical Environment-Temperature
Taiga Plants
Nitrogen Cycle 3
Decomposer
14. Food chain is not a simple linear chain but an intricate web
Tundra Plants
Aphotic Zone
Food Web
Second Law of Thermodynamics
15. Conserve water actively
Aphotic Zone animals
Desert Plants
Dentrified
Biosphere
16. Live in burrows had few birds and mammals are found except those which have developed adaptations for maintaining constant body temperatures
Food Pyramids
Climax Community
Substratum-texture
Desert animals
17. Determines the nature of plant and animal life in the soil
Decomposer
Biotic Environment
Substratum (soil/rock)
Lithosphere
18. Regiong beneatht he photic zone that receives no light
Hemeothermic (Warm Blooded)
Aphotic Zone
Benthos
Abiotic (Physical) Environment
19. Animals that consume only plants or plant foods
Competition
Herbivores
Organism
Tertiary Consumers
20. Free-living organisms that feed on other living organisms
Predators
Ecology
Carbon Cycle 2
Biotic Community
21. 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
Grassland Biome
Grassland Animals
Food Pyramids
Climax Community
22. The chief disruptive force
Competition
Grassland Biome
Desert Plants
Desert animals
23. One that exerts control over the other species that are present
Dominant Species
Biotic Community
Parasitism
Species
24. Trees such as beech - maple - oaks - and willows shed their leaves during cold winters months
Biotic Community
Temperate Deciduous Forest Plants
Tertiary Consumers
Temperate Coniferous Plants
25. Frozen area with no vegetation and terrestrial animals -animals that do inhabit polar regions generally live near the polar oceans
Polar Region
Food Chain
Desert animals
Nitrogen
26. Rhododendrons and pines are more suited for growth in acid oil
Pyramid of Energy
Climate and weather
Substratum-pH
Nitrogen Cycle 2
27. Determined by the same decisive factors-temperatures and rainfall
Population
Epiphytes
Nature of Biomes
Community
28. Animals that only eat other animals -possess pointed teeth and fang-like canine teeth for tearing flesh -have shorter digestive tracts because the easier digestibility of animal food
Pioneer Organism
Biotic Community
Carbon Cycle 1
Carnivores
29. Only animal life and other heterotrophic life exists
Temperate Deciduous Forest Animals
Aphotic Zone
Niche
Coimax Vegetatioin
30. 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
Desert Biome
Marine Biomes
Nekton
Parasitism
31. When one organism is benefited by the association and the other is not affected
Commensalism
Rootlike holdfasts
Tropical Rain Forest Animals
Producers
32. Polar bears - musk oxen - and arctic hens
Omnivores
Nature of Biomes
Thundra Animals
Ecology
33. First to resettle a virgin area
Tertiary Consumers
Rootlike holdfasts
Photic Zone animals
Pioneer Organism
34. Recycle water - oxygen - and phosphorus
Grassland Biome
Substratum-texture
Benthos
Other Cycles
35. Includes climate - temperature - availability of light and water - and the local topology
Hemeothermic (Warm Blooded)
Taiga Animals
Temperate Coniferous Plants
Abiotic (Physical) Environment
36. Forest floors contain moss and lichens
Aquatic Biomes
Deep-sea Organisms
Mutualims
Taiga Plants
37. Must be maintained at an optimal level -organisms have adaptations necessary for protection against extremes
Osmoregulation
Desert Plants
Saprophytes
Physical Environment-Temperature
38. Links between oceans and land
Conditions for stability in an Ecosystem
Dentrified
Marshes
Autotrophs
39. Deer - fox - woodchuck - and squirrel
Tundra Plants
Nitrified
Temperate Deciduous Forest Animals
Nitrogen Cycle 4
40. Monkeys - lizards - snakes - and birds - floor is inhabited by saprophytes
Substratum-pH
Hypotonic
Tropical Rain Forest Animals
Species
41. Characterized by low rainfall - although considerably more than the desert biomes receive -provide no shelter for herbivorous mammals from carnivorous predators -ex: East of the Rockies - steppes of the Ukraine - and the pampas of Argentina
Polar Region
Successive Communities
Food Chain
Grassland Biome
42. Animals that feed on secondary consumer
Tertiary Consumers
Physical Environment- Water
Parasitism
Aphotic Zone
43. Live together in an intimate - often permanent association - which may or may not be beneficial to both participants
Environment
Marine Biomes
Climax Community
Symbionts
44. Two species may rapidly evolve in divergent directions under the strong selection pressure resulting from intense competition. thus - the two species would rapidly evolve greater differences in their niches
Competition Same Niche 3
Biosphere
Temperate Deciduous Forest Plants
Omnivores
45. Nutrients - water - and sunlight limitations aid in maintaining populations at relatively constant levels
Autotrophs
Environmental Factors
Tertiary Consumers
Dominant Species
46. Sunlit layer of the open sea extending to a depth of 250-600ft
Photic zone
Intertidal Zone Population
Other Cycles
Nitrogen Cycle 4
47. Jungles characterized by high temperatures and torrential rains -found in Central Africa - Central America - the Amazon basic - and Southeast Asia
Rootlike holdfasts
Carnivores
Tropical Rain Forest Biome
Tropical Rain Forest Plants
48. The study of interactions between organisms and their environment
Benthos
Ecology
Successive Communities
Grassland Biome
49. Symbiotic relationship from which both organisms derive some benefit
Community
Littoral Zone Populations
Nitrogen Cycle 3
Mutualims
50. 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
Hemeothermic (Warm Blooded)
Carbon Cycle 1
Population
Secondary Consumers
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