Community succession can occur through
A. extinction of species
B. evolution of members of the community
C. invasion of non-native species
D. all of the above
Ans. C. Invasion of non-native species
In a succession, there is orderly replacement of one community by another community over a time in a given area. The species are replaced but they are not extinct. Similarly succession is not evolution, it is like taking place by better competitors.
Community succession can occur through A. extinction of species B. evolution of members of the community...
Species with key functional roles A. offer only one function to a community B. are members of the same trophic level C. are represented by all species in a community D. none of the above
31. After the recent forest fires in California germinating from a seed bank that was succession through: fomia, grasses and other small plants are already was not destroyed by fire. In this case we should expect a facilitation, because of the widesp b. alteration of the soil, which would c. tolerance, since early species are gre d. inhibition, since all species are good compete e. primary succession d. inbitance, since soil, which widespread destruction of ecause of the widespread destruction...
An ecosystem is: A. All members of a species that live in a geographic area B. All species that potentially interact with one another in a given geographic area C. All species and their nonliving environment (sunlight, soil, chemical nutrients) in a given geographic area D. All life and all of the non-living environment on the entire planet Earth.
8. Evolution that results in the formation of new species is: a. Slow Evolution b. Microevolution c. Macroevolution d. True Evolution Questions 11 to 15: Match the type of reproductive isolation with its definition (answers will only be used once). a. Ecological b. Temporal c. Behavioral d. Mechanical e. Gamete 9. If two species that can mate are not attracted to each other because of differences in their courtship rituals. mate. 10. If two species inhabit the same area but...
Attempts Which of the following is an example of a biological factor that can affect community structure? The high temperatures of desert regions limit which species can live there. Tropical regions support a high species diversity by receiving the most sunlight energy An insect herbivore inhibits the population growth of a tree species. A plant species can live only in regions with a suitable level of rainfall select answer in select answer members of one species actively prevent members Competition...
Island species are especially vulnerable to extinction because: A. A single event like a hurricane may destroy a small island population B. The extinction of a prey species may destroy a small island population C. The introduction of a new predator may destroy a small island population D. Random fluctuations in birth and death rates may destroy the small population of an island E. All are correct
A climax community is the end result of ecological a. Recession b. Progression c. Succession d. Termination
2. Which of the following is an example of evolution? a. The ability of human adults to digest lactose. b. A tall giraffe that can eat plants that other members of its species cannot reach. c. A bacterium that survives antibiotic treatment. d. All of the above are correct. e. None of the above.
Permian extinction... Which of the following statements about the Permian extinction is FALSE? A. An estimated 95% of all marine species were lost during the event. B. Adaptive radiations of surviving groups occurred afterwards. C. An estimated 70% of all terrestrial vertebrate species were lost during the event. D. It occurred around 250 million years ago. E. It caused the extinction of the dinosaurs. Which of the following statements about taxonomy is FALSE? A. Species that are in the same...
58. In large bodies of water, the area where water is the most shallow, often where flowering vegetation can root is called the A) limnetic zone. B) aphotic zone. C) littoral zone. D) benthic zone. 59. Regular, annual fluctuations in temperature and precipitation are called A) months B) seasons C) climate. D) weather 60. The geographical distribution of a species is referred to as its A) territory B) population C) range D) niche 61. The multi-step development of a new...