BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Textbook Question
Chapter 40, Problem 3SA
Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. How many fish are in this pond?
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Chapter 40 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 40 - Most commonly, individuals of a natural population...Ch. 40 - The rate at which population size grows or...Ch. 40 - Suppose 200 fish are marked and released in a...Ch. 40 - Prob. 4SACh. 40 - For a given species, the maximum rate of increase...Ch. 40 - _______ is a density-independent factor that...Ch. 40 - Prob. 7SACh. 40 - Prob. 8SACh. 40 - Compared to the less developed countries, the...Ch. 40 - An increase in infant mortality will _______ a...
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- T or farrow_forwardRead the excerpt below and highlight the answers to the questions. 1. What is carrying capacity? 2. How do limiting factors affect carrying capacity? Carrying Capacity If a population is small and resources are plentiful, a population may grow quickly. But over time, because of limiting factors, population growth tends to slow and then stop. The population has reached the "carrying capacity" of the ecosystem. Female cottontail rabbits (Sylvilagus floridanus) are especially fertile, able to give birth to seven litters a year. While this would suggest areas with cottontail rabbits would be overrun by them, this isn't the case. Rabbit populations are restricted by factors like food availability and predation. Due to these limiting factors the rabbit population will only get so big and that is it's carrying capacity. Carrying capacity can fluctuate depending on the limiting factors. If there is more predation or little food, then the carrying capacity will be lower. If there is little…arrow_forwardT or farrow_forward
- The logistic model incorporates carrying capacity to make the model exponentialarrow_forwardT or farrow_forwardSuppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. There are about ______ fish in this pond. a. 200 b. 300 c. 400 d. 2,000arrow_forward
- (A) A sample of limpo grass had a fresh weight of weighed 300 grams. When the limpo grass sample was dried it had a dry weight of 75 grams. What is the moisture content percent of the forage? (B) What is the dry matter percent of the forage sample? A farmer has 6 Barbados black belly ewes which are confined and fed in a pen on his farm. The average weight of the ewes is 68 kg. How much forage must be provided to the 6 ewes for 30 days in each physiological stage? Production Phase Maintenance Maintenance +first week 15 weeks of pregnancy Maintenance +last 6 Percent forage dry matter required daily for each animal 2 2.2 3.3 week of pregnancy Maintenance +lactation 4.2 (1 lamb) Total forage dry matter fed per day (kg) daysarrow_forwardMuro-ami is a fishing method where the fishes are driven out of a coral reef by pounding the corals with a heavy weight, or simply by breaking the corals. Then the fishes are guided into the nearby fishnets. - Is Muro-ami illegal? Why?- Cite at least two ways by which the different sectors of the society can help in the protection and conservation of fishes.arrow_forwardDesign a sampling experiment that would allow you to estimate the size of the sockeye salmon population in a river in British Columbiaarrow_forward
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