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All members of a cohort are the same_____ .
a. sex b. size c. age d. weight
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- 2) Whichofthefollowingarenon-demographiccharacteristicsofstudypopulations? A) Sex B) Weight range C) Ethnicity D) Location of residencyAll individuals of the same species living in a defined place at the same time make up a ______. A.) population B.) gene pool C.) community D.) cohort4.) Mang Berto breeds white mice in a cage. After a few generations, the breeder observes that the white mice are more aggressive towards each other, the young are less healthy, and more young white mice die. What do you think will happen to the population of white mice? a.) The population is not affected. b.) The population will remain the same. c.) The population will decrease. d.) The population will increase 5.) South Cotabato is known for its wide variety of fruits and other plant species that makes it really attractive to tourists. Which of the following classification of biodiversity value is described? a.) Direct economic value b.) Indirect economic value c.) Ethical/ cultural d.) both B and C 9.) If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population? a.) It will fluctuate. d.) It will increase. c.) It will stay the same. d.) It will decrease. 10.) Refers to the number of…
- Suppose 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. 2,000How do hatcheries (i.e. farmed salmon) impact wild salmon population genetics? A: Increase species variability between different populations B: Decrease the resilience of wild populations C: Decrease mixing between different populations D: Overcrowd streams when they return to where they were spawnedIf a species is no longer able to reproduce, it will a. adapt to its environment b. become extinct c. become immune to disease d. increase its population
- A population of 1,000 individuals experiences 462 births and 380 deaths in 1 year. What is the value of r for this population? a. 0.842/individual/year b. 0.462/individual/year c. 0.380/individual/year d. 0.820/individual/year e. 0.082/individual/yearAn increase in infant mortality will _______ a populations replacement fertility rate. a. raise b. lower c. not affectA population has 1000 juvenile individuals, 100 young adult individuals, and 10 older adult individuals. This population is likely…? Group of answer choices a, increasing b. decreasing c. stable d. no way to tell
- You are studying a population of wild coyotes and notice that every three years there is an epidemic of bacterial disease. Which of the following is the most likely explanation for this periodic cycling of the disease ? A) New coyotes, which are suceptible to the disease, are continously born into the population B) Coyotes are dying from other causes over time. C) During an outbreak the proportion of coyotes who are infected slowly falls as they recover D) Coyotes from other populations who have already been infected and recovered from diseases immigrate into the study populationFigure 45.2 As this graph shows, population density typically decreases with increasing body size. Why do you think this is the case?choose the correct letter and explain why you choose it. 1. Which of the following is not a characteristic of a K-selected population? a. the maturation time of the young is long. b. the lifespan of the organism is long. c. there are few offspring per reproductive cycle. d. there is little parental care