10,000 9,000 AM 8,000 7,000 6,000 D 5,000 4,000 3,000 В 2,000 A 1,000 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 Estimated Beaver Colonies ----- 20-Year Linear Trend Line (2000 - 2019) The beaver was once extirpated from Ohio, but it has since recolonized the state. Since 1960, the population has been growing more or less logistically. The figure above graphs beaver population growth in Ohio, and the approximate logistical growth curve (black line). At which point, was the growth rate (r) the highest? A В C D Beaver Colonies
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- Activity 4. Make a Dichotomous Key. Make a Dichotomous Key for the animals illustrated below https://www.flickr.com/photos/queenslandstatearchives 137884088126 https:pixabay.com/vectors/biodiversity earthworm fertilizer-160380 https:Weommens.wikimedia.arg/aiki/File:CSIRO_Seienoeimage 2186 ARed ackSprderjpg https://en.wikipedia.org/wiki/Tamaraw %3D II IV16) the level of populations supported by its surrounding resources and is maintained at a constant level occurs in the phase of a logistic growth curve a) initiation phase b) necrotic phase c) Growth phase population d) stationary phase e) initiation phaseAn exponentially growing bacterial population increases its number from 103 to 1010 in 4.5 hours and reached 10¹4 cells in 8.5 hours. What is the growth rate of the population? O-7 generations/hour O-4 generations/hour O-3 generations/hour -6 generations/hour Lacks information, cannot be determined Next
- 5. Below is the survivorship growth curve- (C) a) What does the x-axis on the graph in Model 2 represent? b) Which type of organism shows a steady decline in its population at all life stages? c) Which type of organism loses most of the individuals in its population at an early life stage? d) What survivor type are humans? Percentage of organisms surviving 100 10 1 Type III Type II Time Type IA virus is transmitted by contact and if you are first infected, you will remain a carrier for an indefinite period. In an isolated population with "P" persons, is the infection rate at time "t" (in months after 1.jan 2020) proportional to the product of(1) the number of y (t) infected,(2) the number who are not infected,i.e the infection follows logistic growth. One tenth of the population is infected 1.jan -2020.If one-fifth of the population is infected one month later, how many are infected one year later?Which type of mutualism (obligate or facultative) was described by the authors in this study? In less than one paragraph, explain specifically why you think it is that particular type of mutualism. Article Reference for question https://www.mdpi.com/2223-7747/10/4/760 I wasn't sure how else to attach the article as reference
- 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.vier Pabon Martirlaz - Chapter x U Meet-cxf zpso-nxh ocument/d/1Gs-tJQEOT87boJxhUjVgouSnEmebrAwtSNWHWEb4MKU/edit Arlal BIUA 100% Normal text 14 1 |. 2 3. 4 21st Century Themes Science and Global Awareness, Science and Civic Literacy 1. What abiotic factor is changing the ecosystem of Lake Washington, and how has this factor changed over time? 2. Explain how this change has affected the mixing of warm and cold water in the lake. How does this in turn affect fish? 3. This report suggests that global warming is a primary contributor to the increased temperature in the lake. What does this suggest about other lake ecosystems in the northwest coniferous forest? 4. Briefly describe a food chain in Lake Washington. 5.1f the zooplankton population is decreasing in Lake Washington, what do you think is happening to the salmon population? Explain your answerSpeculate upon the calculation shown in the table and Graph; Briefly explain: a)Do the cohort survivorship curves from each decade different from one another? If so, what might have caused the differences? b)Were the population growing while the cohort was extant? c)How would the data have been altered if Woodland Cemetery had stopped excepting interments in 1950 rather than being open to the present day? d) One problem with studying survivorship curves is that a birth cohort must be followed through until the death of the last individual. How would the shape of a 1960's cohort survivorship curve be altered from those of the 1800's?
- Illuminate Home Connection Question 3 | 2020-2021 Scienc x c8f9098c078b6dcc/3?rldbqn=1 EReading lis C.. O Nearpod - 12.17.20 Signed in as: Aiden Hunter Q Review / v Finish Test ABC Question 3 A scientist claims that orchid populations will be smaller in areas that have an average spring temperature of 9°C compared to areas that have an average spring temperature of 7°C. Which argument BEST supports this claim? sa at ak gure ak Orchid populations will be smaller at higher temperatures because the probability of male pollinating bees arriving before orchid flowering is lower. This will result in decreased orchid reproduction and smaller populations. A Orchid populations will be smaller at higher temperatures because the probability of male pollinating bees arriving before orchid flowering is lower. This will result in increased orchid reproduction and smaller populations. Orchid populations will be smaller at higher temperatures because the probability of male pollinating bees arriving…88)The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What type of survivorship does this species have? x nx bx 0 678 0 1 102 0 2 31 0 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 Question 88 options: Type I Type II Type IIIIn many rural areas, stray cats are a problem as they may return to being wild feral cats that have not been spayed or neutered can reproduce, which may result in a population of feral cats. One pair of cats can produce 12 kittens in one year, and half of these kittens are female; this increased population would potentially produce 84 kittens in the second year. In 5-years, the population could reach almost 33000 feral cats. A) What conditions or factors would have to be in place for the population to achieve its biotic potential?