Miss l is bored in the summer, so she wants to estimate the population of weeds on her property. The property measures 20 m x 20 m. She randomly places ten 1 m x 1 m quadrats on her property as shown in the diagram below. What is the estimated population size?
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Miss l is bored in the summer, so she wants to estimate the population of weeds on her property. The property measures 20 m x 20 m. She randomly places ten 1 m x 1 m quadrats on her property as shown in the diagram below. What is the estimated
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- What is the population density of corn in a hectare if the distance of planting is 75 cm x 33 cm with 2 plants per hill?The grassland ecosystem of Montana is being studied for its resilience as the population of its keystone species, the prairie dog, has declined in recent years. Four plots are established, two that still contain populations of prairie dogs and two that no longer have prairie dogs due to outbreaks of plague. A survey is done measuring the total number of producers (number of plants) and the diversity of producers (number of species) of each plot. The data are summarized in the table. Based on this data, which of the following correctly describes how the total number of plant and plant species will change over time in these plots? A - Plots 2 and 3 will show equal decline in plant and plant species due to the lack of a keystone species. B - Plots 1 and 4 will show a decline in plant and plant species due to an increase in the number of prairie dogs consuming the producers. C - Plots 2 and 3 will show a decline in plant and plant species, but plot 3 will show a slower decline due to a…In constructing a mathematical model for population growth of tilapia grown in fishpens, which factor(s) may be included in model.
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- When the average mass of individual plants in a stand is plotted against stand density (log-transformed), the slope of the relationship is very often around Multiple Choice -1/2. -1. +1/2. -3/2. +3/2.QUESTION 25 Select the correct answer regarding farming methods organically grown foods have been proven to be safer and less costly than conventionally grown crops Integrated pest management looks wholistically at growing practices to find the most efficient way to farm Organic agriculture uses no pesticides Most farmers spray as many chemicals as possible when growing crops All answers are trueWhat are the three characteristics of numbers in solving agricultural problems? Book: Introduction to Agricultural Engineering Technology: A Problem-Solving Approach, 4th Edition
- You are responsible for adding plants to park to make it nice and green, and your only concem is making as much Net Primary Productivity (NPP) as possible. Your assistant has given you a list of potential plant combinations (Options A, B, C, D, or E) they believe might work. You DO NOT know the NPP of the individual plant species. Here is a table with your options. The number in each box represents the abundance (number of individuals) of that plant species for a specific option. Option A Option B Option C Option D Option E Species 1 0 20 0 20 57 Species 2 0 20 24 1 0 Species 3 120 20 24 10 0 Which option should you pick if you are trying to maximize NPP in your park? O A. Option A OB. Option B OC. Option C O D.Option D O E. Option E Species 4 0 20 24 10 17 Species 5 0 20 24 5 45 Species 6 02270 24 74You've been out in the field collecting data on the predation of holly leaves. You collect 200 leaves in total of which 100 leaves contain one mine, 20 leaves contain 2 mines and 30 leaves contain 3 mines. After close examination with your hand lens and dissecting microscope you categorize a total of 15 mines with round holes, 9 mines that were torn open and 27 mines with an irregular hole. After some basic analyses you conclude that the predation rates by blue tits and wasps are: A. 3.7% and 6.5% B. 6% and 10% C. 10% and 6% D. 4% and 6.5%Using the attached image and chart, calculate the doubling time for a population with the given growth curve. Coordinates are presented as (time, Ln(population).