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GHS 9 SCI 8
Chapter Eight Review
| Question | Answer |
|---|---|
| This occurs when species may evolve adaptations that reduce the harm or improve the benefit of the relationship with other species | coevolution |
| All maple trees in a forest is an example of | population |
| The density of a population is | the number of individuals per unit area |
| example of a parasitic relationship | a roundworm in a human’s intestine |
| example of a parasitic relationship | a tick on a cat |
| example of a parasitic relationship | mistletoe on a tree |
| The relationship between a Canadian lynx and a snowshoe hare is an example of | predator and prey |
| In which of the following relationships is neither species harmed? | commensalism |
| Population example that has a random dispersion | solitary snakes in a desert |
| This example could cause a large number of density-independent deaths in a population? | winter storms |
| Example of organism that has the highest reproductive potential? | bacteria |
| exponential growth | Within a few years a population can increase dramatically |
| The relationship between acacia trees and the ants that live on them is an example of | mutualism |
| The number of wild horses per square kilometer in a prairie is the horse populations | density |
| If over a long period of time, each pair of adults in a population had only two offspring and the offspring lived to reproduce, the population would | remain the same |
| Which of the following has the greatest effect on reproductive potential? | reproducing earlier in life |
| These may cause their hosts to become more vulnerable to predators. | parasites |
| The carrying capacity of an environment for a particular species at a particular time is determined by the | supply of the most limited resources |
| the growth of orchids on the high branches of tropical trees is an example of commensalism because why? | The trees are neither benefited nor harmed |
| A relationship in which two organisms live apart. | Symbiosis |
| One of the main properties used to describe a population? | number of individuals |
| True or False: An organism’s habitat is a location. | True |
| True or False: Competition for food cannot occur between animals from two different ecosystems. | True |
| Which of the following reproductive situations will limit a population’s biotic potential? | the maximum number of offspring each individual can produce |
| The difference between a predator and a parasite is that a predator usually does this to its prey | kills and eats it |
| The fastest rate at which a species can grow | biotic potential |
| The growth rate calculation | birth rate minus the death rate |
| The change in the size of a population over a given period of time | growth rate |
| Causes of deaths that occur more quickly in a crowded population | density dependent |
| Deaths caused by severe weather or natural disasters and not by the density of the population | density independent |
| This is usually described as even, clumped, or random in reference to a population. | dispersion |
| A robin that does not affect the tree in which it nests is an example of this | commensalism |
| If two species use the same food source at different times, they are considered | indirect competitors |
| The average age at which members of a species reproduce is called | generation time |
| The maximum number of offspring that each member of a population can produce is called the | reproductive potential |
| The three main properties used to describe a population are | size, density, dispersion |
| This is the maximum number of species in a population that the ecosystem can support indefinitely. | carrying capacity |
| The amount of food available for wolves in an area determines the ecosystem’s carrying capacity for wolves and is considered this | limiting resource |
| Members of a species compete indirectly for resources by competing for this factor as well as social dominance. | territory |
| The number of a populations members per unit area or per volume. | density |
| Deaths that are caused by a disease spreading through a population are | density dependent |
| includes that species’ physical home, the environmental factors necessary for that species’ survival, and all its interactions with other organisms. | niche |
| A type of interaction between two species in which both species are harmed | competition |
| When each species uses less of the niche than it is capable of using, in order to reduce competition for resources with other species. | niche restriction |
| The organisms in a cow’s stomach have a constant source of food; the organisms help the cow break down and use the grass it eats. This type of relationship is an example of | mutualism |
| The type of interaction between cats and mice is | predation |
| A liver fluke that harms its host as it obtains food is an example of a | parasite |
| This usually only weakens its host, while a(n) predator usually kills its prey. | parasite |
| A relationship in which two organisms live in close association, such as mutualism and commensalism, is called | symbiosis |
| If a pair of mice finds a place to live with plenty of food and no predators, the population of mice will probably undergo this type of growth | exponential |
| Over a long period of time, two species can develop adaptations that increase the benefit of their relationship in the process of | coevolution |
| When the death rate is higher than the birth rate this type of growth rate exists | negative |
Created by:
rseneta