13. The smallest number of individuals which can exist without extinction due to random catastrophic variations is referredto as:a) Minimum populationb) Minimal viable populationc) Survival populationd) Population resiliency14. What is the term for a plant or animal species introduced into a community where it may disrupt balance in anecosystem and threaten biodiversity?a.b.c) 1200d) 500C.d.e.parasitepredatorpreyindigenous speciesnonindigenous species15. A population of Trout in Lake Ontario is being studied. 500 Salmon were caught, tagged, and released. Later, 100 fishwere caught. Of the those, 18 were tagged. Estimate the population size.a) 3125b) 2778

When a species is completely wiped off from the face of the earth with no chances of existence then…

o as: Minimum population Minimal viable population urvival population opulation resiliency What is the term for a plant or animal species introduced into a community where it may disrupt balance in an ystem and threaten biodiversity? a. b. parasite predator prey C. d. indigenous species e. nonindigenous species

o as: Minimum population Minimal viable population urvival population opulation resiliency What is the term for a plant or animal species introduced into a community where it may disrupt balance in an ystem and threaten biodiversity? a. b. parasite predator prey C. d. indigenous species e. nonindigenous species

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter52: Population Ecology

Section: Chapter Questions

Problem 1TYK

See similar textbooks

Similar questions

7)Which of the following is the best definition of a trophic cascade? a)Significantly changing the population size of one species causes significant changes in the population dynamics of other species b)Adding or removing one species causes significant changes the population dynamics of other species in the community c)Significantly changing the population size of a species at one trophic level causes significant changes in the population dynamics of populations that do not directly interact with this species d)Adding or removing species causes a collapse of the food web for that community e)None of these definitions are accurate
1. Differentiate between a dominant and a keystone species.2. What is the advantage of species diversity indices over species richness?
7) The term "preemptive competition" refers to _________________. Question 7 options: when individuals of one species inhibit individuals of another by consuming a shared resource situations where the occupancy by one individual precludes the establishment of others when one organism grows over another, thereby inhibiting access to some essential resource when chemical growth inhibitors inhibit germination and establishment of other species when nonterritorial meetings between individuals negatively affect one or both of the participant species
What kinds of damage do non-native species cause?
2. Janitor fish (Pterygoplichthys pardalis) live in the river dominates the other species inhabiting the same area. They compete for food, nutrients, and territory. Which of the following BEST describes a school of Janitor fish? * A. They are introduced species. B. They are keystone species. C. They are exotic species. D. They are invasive species.
14. Which of the following is NOT a factor affecting population growth? * A. Stability B. Natality C. Mortality D. Genetically modified organism 15. What term refers to the over-harvesting of species and natural resources to the point that the ecosystem or habitat cannot compensate or sustain itself? * A. Fragmentation B. Overexploitation C. Epidemics D. Pandemic
1) How did the removal of sea otters affect the population of two other organisms? Please explain. (grey means they are no longer available in that ecosystem).
Which types of species are most vulnerable to extinction?
According to the framework proposed by Blackburn et al. (2011), the term "invasive" applies to a species that has reached which stage along the invasion process model? A. Transport B. Introduction C. Establishment D. Spread
3.8 Describe at least three human activities that are currently harming biodiversity as described above. 1. 2. 3.
1. What will best describe ecosystem biodiversity? a. Measure of the variety of different versions of the same genes within individual species b. Describes the number of different kinds of organisms within individual ecosystem c. Defined by species richness and species evenness d. Includes the variation in both terrestrial and aquatic ecosystems 2. Which is NOT a reason to preserve biodiversity? a. To find unique genetic materials that may improve existing crops b. To increase the chances of discovering organisms with medicinal value c. To prevent adaptation and natural evolution of organisms d. To allow ecosystem services to continue
1.How do people accelerate species extinction?