Total Number of Tree Snails (N) 500 300 200 8888888 700 600 400 100 0 1997 1999 2001 2003 2005 Year 2007 2009 2011 2013 Figure 2. Achatinella lila captive population growth after its founding in 1997 with seven snails. The population peaked in 2009 with 668 snails and declined to less than 200 snails by 2013. Why does the population of tree snails experience a drop after the initial increase? 000 snails were not adapted to living in captivity authors attribute the increase of genetic diversity to the population drop a viral infection decimated the snail population in 2009 and consecutive years a genetic bottleneck led to reduced genetic diversity and fecundity
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- Consider the graph below. List two (2) general reasons why there is very slow or no growth near the top of a growth curve like this one. Your reasons do not need to be specific to wildebeest or zebras. o wildebeest A zebra 1960 1970 1980 1990 2000 year Figure 1. Wildebeest and zebra populations in the Serengeti from the 1950s to 20o10. vaccination campaign 0o 0000 000000 000009 00000 populationWhat is often true of a population of organisms with a type Il suvivorship curve? they produce few offspirng and invest more energy in each offspring they produce more offspring and invest little energy in each they have low death rates during early life stages they are equally likely to die at any ageUsing the figure provided, which curve implies that an animal may lay thousands of eggs per year with a regular number dying each year? 1000 Туре 1 100 Type II 10 Type III Age O Type I O Type II O Type III O none of the above a op A insort sc %24 4 & 5 8 Log Number of Survivors (a,) ooo
- Back at the original iguana population, only 40 iguanas remained. This population also has a growth rate of 0.6 and generation time of 2 years. But the island on which this population resides is much smaller and has a carrying capacity of 200. How many iguanas do you expect to find in the original population after 6 years?Which type of survivorship curve is generally exhibited by honeybees given their life history strategy? Type I Type II Type IIIThe species to which this population belongs, invests very little into parental care True False
- b) Figure 7 shows population growth of Proboscis monkeys over time. 2.0E carrying capacity V 1.5- Monkey populations 1.아- 0.5- Time Figure 7 i) State the type of population growth. ii) Proboscis monkeys nomally live in groups in their natural habitat. What is the dispersion pattern for this monkey population? iii) Describe what happens to Proboscis monkey population at V. 12 iv) Give one (1) possible example of density-dependent factor that affects the Proboscis monkey population.The Two-Sided Attack on the Spiny Cactus The spiny cactus is a type of plant that lives in a desert environment. A population of spiny cacti shows variation in the number of spines on their outer surfaces. The graph below shows the distribution of the number of spines before the introduction of collared peccaries and parasitic wasps. Spiny Cactus Organism Collared peccary (musk hog) Number of Cacti Parasitic wasp 300 200 100 T Collared peccaries and parasitic wasps are two organisms that were introduced to the ecosystem in which the spiny cactus population lives. The chart describes the relationship between the spiny cacti and these two organisms. 70 1 1 80 90 100 110 120 130 Number of Spines Organisms Introduced into the Ecosystem Relationship with Spiny Cactus Plants They eat spiny cactus plants that have a small number of spines. They lay eggs at the base of cactus spines. When the eggs hatch, the emerging grubs dig into the interior of the cactus and eat the inner pulp of the…Population Growth The graph below shows the population of fur seals along a coastline from 1910 to 1950. Look at the graph, then answer the questions below. Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 10 8 6 1915 1925 1935 1945 Time (years) What is the estimated carrying capacity of this population in this environment? 4,000 8,000 10,000 1,000 Breeding male fur seals (thousands)
- Please help with these as they are part of 1 question and I am so confused. I really need help like never before and I will highly consider thumbs up but please help asap. 1- There is no evidence that an ice storm that kills all earthworms struck the city of Guelph in Spring 2011. ( Choose true or false) 2- There is less food available for Earthworm Species A in Brown's Woods than in the Dairy Bush. ( Choose true or false) 3- Species A and Species B compete for the same critical resources. ( Choose true or false) 4- Species B limits the carrying capacity of Species A. ( Choose true or false)This example of the Bollworms is an example of evolution by natural selection. For this to be the result of evolution which of the following statements must be true? Worms can change and become resistant to the toxic pesticide during their lifetime. The pesticide causes the mutation that makes the worms resistant. The ability of worms to survive exposure to the toxic pesticide is due to a genetic difference. DELL F5 F6 F7 F11 PriScr F12 Insert F10 %24 5 T G M. Of Alt CtrlDirection: Analyze the situation and tell what limiting factor is being described. Choose in the box below the type of limiting factors. Mortality Natality Emigration Immigration Situation Limiting Factor 1. Every year, there's an increase in the population of migratory birds in Candava. Pampanga. 2. The increase of the population of frogs during rainy days. 3. Russian population decline due to Covid-19 effect. 4. Decrease in the population of birds when they move to another place due to unfavorable weather conditions. 5. The population in the Philippines increases due to teenage pregnancy.