Which of the following factors does not determine a species' biotic potentian A. The life span of the individuals B. The number of offspring that survive to their reproductive age C. The number of offspring per reproductive cycle D. The age of reproductive maturity and the age of death
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- 6. Which of the following statements about biotic potential is TRUE? * Biotic potential of an organism is determined by how they interact with the environment. Increase in food supply increases the biotic potential of an organism. O If an organism has higher rate of reproduction, it has higher biotic potential. Small organisms have low biotic potential because of their size. 7. An 'overshoot' in a population occurs when O the mortality of the population exceeds the natality. O the replenished resources in an ecosystem equals the natality. the natality of the population does not decrease with respect to the replenished resources. the ecosystem is damaged or destroyed. 8. Which of the following is most likely to occur if there is an 'overshoot' in a population? * Rate of immigration of individuals increases. Competition occurs and there is a rapid decrease in the population. The ecosystem will collapse because of the limited resources. The species will be endangered.Which of the following will affect the biotic potential of a species?a. length of time it takes an individual to reach maturityb. number of members of the population at reproductive agec. number of offspring produced by each reproducing memberd. all of the above6 of 6 32. Ecosystems will have a greater chance of being stable over a long period of time if they have A. organisms imported by humans from other environments B. a sudden change in climate C. a diversity of organisms D. predators eliminated from the food chains 33. Which of the following is NOT a way that humans can protect biodiversity? A. Developing state parks B. Buying products that aren't sustainably sourced (palm oil, coffee, chocolate, etc...) C. Legally protecting endangered species to preserve biodiversity D. Regulating hunting and fishing 34. A wooded area has been divided by a housing development and is threatening the biodiversity of the area. What term is used to describe this threat from human activities? A. habitat fragmentation B. acid precipitation C. habitat augmentation D. global warming 35. Which of the following is NOT a characteristic of an invasive species? A. They grow rapidly and outcompete with other plants or animals B. They produce large numbers of seeds…
- 4. what would be an example of a landscape ecology study? a. the investigation of how black bears are important in seed dispersal b. the investigation of the reproduction and growth of black bears living in NJ c. the investigation of how black bears move nutrients and energy from the edge of the forest to the interior of the forest d. the investigation into the metabolism of a black bear during hibernation6. Define ecological niche and describe how it is related to resource partitioning. a. Can two species with identical niches permanently exist in the same community? Why?2. In the previous question, there was a description of how the ecosystem of tortoises is affected as humans build more neighborhoods and other buildings. Which part of the environment is most directly challenged during this process? A. abiotic factors C. density-related factors B. biotic factors D. a combination of all 3 types
- 11. Three different lizard species co-exist in the habitat shown here. Describe three different niches they might fill that would allow the species to live in the same area (resource partitioning).28. Which of the following is an accurate statement about ecosystems? a. Energy is recycled through the trophic structure. b. Energy is usually captured from sunlight by primary producers, passed to secondary producers in the form of organic compounds, & lost to detritivores as heat. c. Chemicals are recycled between the biotic and abiotic sectors, whereas energy makes a one way trip through the food web and is eventually dissipated as heat. d. There is a continuous process by which energy is lost as heat, and chemical elements leave the ecosystem through runoff. e. A food web shows that all trophic levels may feed off each other.6.Which of the following is a true statement? a. There are always more heterotrophs than autotrophs in an ecosystem b. Only 10% of the energy is transferred from one trophic level to the next -- because of this energy loss, there are always more autotrophs c. In numbers pyramids, there are more autotrophs but no in biomass pyramids d. The number of species increases as the trophic level increases answer explain
- 1. Calculate the total number of animals and plants by adding together all the species of animals and plants (N). 2. Calculate Simpson’s Biodiversity Index (D).1. Differentiate between a dominant and a keystone species.2. What is the advantage of species diversity indices over species richness?1. What is biodiversity? Include a description of the different scales at which biodiversity can be measured. 2. Why is protecting biodiversity important? 3. What are the major threats to biodiversity? 4. Identify and describe three sources of habitat loss.