How many species are on the far small island? Rate of Change in the Number of Species over Time 0 0 O 50 O 100 O 150 O 200 0 A B 50 100 # Species 4 150 200 C D
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- please fill thee tablee andd answer thee questions Directions: Compare the diversity of the organs Community Ad Community lying up Table 1 hr Abwer the question that Gollow Witte your awers separate sheet of peper Community A consists of die dierent species with a total of 50 Indivabala Each species fins 10 individuals Community B also consists of the (5) different species with total of 50 individuals. The species that consist of 10 members each while others consist of 4 members, 6 members, and 20 members Table 1. Diversity of Organismie Community A Species 2 3 Abundance of Individuals Species 2 3 4 Abundance of Individuals 5 TOTAL 50 15 TOTAL 50 Question: 1. Compare the species diversity of the two communities based on the table above. a. Which community has a great variation in dominance? b. Which community has a greater evenness? c. Which community has greater species diversity?What kind of ecosystem are exotic species especially threatening to? a. deserts b. marine ecosystems c. islands d. tropical forestsThe number of currently described species on the planet is about ________. a. 17,000 b. 150,000 c. 1.5 million d. 10 million
- Which of the following is NOT one of the main causes of today’sbiodiversity crisis?a. Natural disasters, such as earthquakesb. Habitat destruction and degradationc. Overexploitationd. Introduction of nonnative speciesThe number of currently described species on the planet is about ________.a. 17,000b. 150,000c. 1.5 milliond. 10 millionPopulation size increases whena. the sum of birth rate and death rate exceeds the sum ofimmigration and emigration.b. the sum of birth rate and immigration exceeds the sum of deathrate and emigration.Figure 37.20 Opportunistic and Equilibrium Species:A Summary.• High reproduction rate• Many ospring• Each ospring receives littleparental care• Low survival rate for juveniles• Early reproductive maturity• Type III survivorship curve:Opportunistic life history Equilibrium life history• Low reproduction rate• Few ospring• Each ospring receivesextensive parental care• High survival rate for juveniles• Late reproductive maturity• Type I survivorship curve:AgeSurvivorsAgeSurvivors764 UNIT SEVEN The Ecology of Lifehoe2420X_ch37_748-765.indd 764 12/15/16 11:45 PMc. the sum of birth rate and emigration exceeds the sum of death rateand immigration.d. the sum of death rate and immigration exceeds the sum of birthrate and emigration.
- The number of named species is about______________, butthe actual number of species on Earth is estimated to beabout ______________ or higher.Why do species defintions matter in conservation biology? (500 words min)The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US. However only 5 million acres now remain. This refers to a large reduction ina. the species rangeb a metapopulationc a mega population
- Conservation status of specieschanges often as new threatsarise and current threatssubside. Fish and marine lifeare often threatened by humanactivities such as overfi shing,pollution of ocean and freshwater habitats, and climatechanges. When it comes tomaking choices about whatseafood to purchase andconsume, what resources areavailable to consumers to knowthat fi sh they are buying is notvulnerable or endangered?Organismsthat produce many offspring would best be characterized by which of thefollowing?a.A convex survivorship curveb.A concave survivorship curvec.A linear survivorship curved.A sigmoidal survivorship curvee.None of the choices applyHow to I calculate # species Canada and % Total for the IUCN table? Under the redlist catagory the following are choosen Critically Endangered (CR), Endangered (EN), and Vulnerable (VU). Use tha attached file to answer the question.