You add 4 paramecia to a test tube and feed them bacteria. One week later the population has grown to 16. Assuming that the population is growing exponentially, how many paramecia can you expect after 10 weeks? Round your answer to the closest full number.
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Population Growth
R and K Selection
R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.
You add 4 paramecia to a test tube and feed them bacteria. One week later the population has grown to 16. Assuming that the population is growing exponentially, how many paramecia can you expect after 10 weeks? Round your answer to the closest full number.
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- The information indicates that the dinoflagellate population studied is Select one: a. Use the following information to answer the next question. To investigate the ecological strategies of dinoflagellates, a type of microscopic algae, researchers set up some aquariums of dinoflagellates. Dinoflagellates were introduced into each aquarium at day 0. After 15 days, the dinoflagellate population bloomed (had a rapid population increase) in each aquarium. Within 48 hours of the appearance of the "blooms," few dinoflagellates remained. C. b. K-selected with a J-shaped growth population curve d. r-selected with an S-shaped growth population curve K-selected with an S-shaped growth population curve r-selected with a J-shaped growth population curve O O OUsing the attached image and chart, calculate the doubling time for a population with the given growth curve. Coordinates are presented as (time, Ln(population).Consider the following graph depicting the population growth of bacteria in an “ideal” laboratory created condition. Explain what conditions would allow for a population to grow exponentially like in this example, and why this is unlikely to occur naturally in the wild. ✓✓ Population (number of bacteria) 35000 30000 25000 20000 15000 10000 5000 0 Population Growth of Bacteria in Ideal Conditions 2 Time (hours) 3
- The figure shows the output from the SIR model that you used in lab. One or more of the curves shown represent a population that had an initial fraction infected of 0.03. Which curve or curves match this description? Select all that apply. 0.05 0.10 0.15 0.20 0.25 0.30 Susceptible Hosts A Infected Hosts B. 0.02 0.04 0.08 000 90'0Bacteria reproduce by fission (splitting in two) and can respond very rapidly to environmental changes. A culture of bacteria is found to contain 4.95 X 109 bacteria and the carrying capacity of the culture is 5.0 X 109. How will the bacterial population change in the near future. Group of answer choices -it will increase very rapidly to K -it will increase very slowly to K -it will grow exponentiall -it will decrease very rapidly to KAn exponentially growing bacterial population increases its number from 10³ and reached 10¹ cells in 8.5 hours How long will it take for the population to reach 10¹8 cells? 19.5 hours 10.5 hours 11.5 hours 12.5 hours Lacks information, cannot be determined Next
- An 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 NextA population of 30 rabbits has been introduced into a new region. It is estimated that the maximum population the region can sustain is 400 rabbits. After 1 year, the population is estimated to be 90 rabbits. How many rabbits will there be after 3 years? In a city whose population is 100 000 an outbreak of flu occurs. When the city health department begins, its record keeping, there are 625 infected people. The number of infected people N is increasing at a rate proportional to the square root number of infected people at time t in weeks. One week later, there are 1600 infected people. Find the number of infected people two weeks after the record keeping begins.In January 2010, a population of organisms had a size of 564. By the end of the year 109 of those individuals had died, but 384 were born. what is the net reproduction per capita for this population?
- The three types of curves are also described as: early loss, late loss, and constant loss. Propose an organism that would have a Type 2 curve. Defend your choice by describing this animal's life pattern using the data and growth curve as a guide. (If you are really stuck, use google to look up survivorship curves)A mess of 40 iguanas moved to a new island which is so large that the carrying capacity is essentially non-existent. The growth rate for these island iguanas was 0.6 and they have a generation time of 2 years. How many iguanas do you expect to find on the island after 6 years? (Show your work. Round your final answer to the nearest whole iguana and clearly indicate your final answer).You start a lab colony of Rotifers (small aquatic animals) by adding 5 indviduals to a small tank. One week later the population has grown to 17. Assuming that the population is growing exponentially, how many rotifers can you expect after 7 weeks? Round your answer to the closest full number.