FREE BIOLOGY AND STUDY GAMES ABOUT EXAM 4 BIOL

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FREE BIOLOGY AND STUDY GAMES ABOUT EXAM 4 BIOL

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -45 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: A community is composed of

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Potentially interacting populations of different organisms.Question 2: The maximum number of individuals a habitat can support is called its

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Carrying capacity Question 3: A hypotheical community on a barren mid-Atlantic island consists of two fish-eating seabirds (boody and noddy) the fungi and microorganism that live on the birds' dung, tick that feeds on these 2 birds, cactus, moth feeds on cast-off feathers, beetle...

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Booby-primary consumer Question 4: Which of the following is most clearly a case of density-dependent population regulation?

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A dangerous new flu strain that is transmitted among humans bly sneezing.

Question 5: The pattern of distribution for a certain species of kelp is clumped. The pattern of distribution for a population of snails that live on the kelp be.

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Clumped Question 6: When two different populations in a community benefit from their relationship with each other, the result is called

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Parasitims

Question 7: Energy flow is an ecosystem begins with

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Autotrophs Question 8: Which of the follwing associations between organism and nutrient source is incorrect?

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Humans- carnivors Question 9: The death by bubonic plague of about one-third of Europe's population during the 14th century is a good example of.

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A density-dependent effect Question 10: Which of the following accurately represents a food chain in the grasslands of Africa?

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Grass, Giragges, Lions, Vultures, Fungi Question 11: In a certain ecosytem, field mice are preyed on by snakes and hawks. The entry of wild dogs into the system adds another predator of the mice. The most likely short-term results of this addition is

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A reduction in numbers of mice.

Question 12: Most plants have a varity of chemicals, spines, and thorns because the plants

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Cannot run away form herbivores.Question 13: You drive through Iowa in the spring and notice that along a stretch of several kilometers, every third fence post has a male redwing blackbird perched on it defending its nesting terittory. This is an example of.

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Uniform dispersion Question 14: An ecologist hypothesizes that preation by a particular owl species is the major factor controlling the population of a particular rabbit species. If this is the case, which of the following population effects could be expected in this rabbit-owl pair?

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An increase in the owl population should cause a fall in rabbit population.Question 15: Approximately what percentage of the energy in one trophic level is incorporated into the next trophic level?

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10% Question 16: Two communities may have exactly that same number of species, yet one might be measured as having a greater species diverity. Why?

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Both the number of species and the evenness or relative abundance of individuals of the different species.Question 17: All the populations of all the different species interacting with one another in the same environment is called

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Community Question 18: When a crocodile eats a fish, the interspecific interaction between that two could be expressed as ___ for the crocodile and ____ for the fish.

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+;-

Question 19: The flow of ___ into ecosytems occurs in one direction only, while ___ are recycled within the ecosystem itself.

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Energy; chemicals Question 20: A group of individuals of a single species that occupy the same general area defines a

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Population Question 21: In a hypotheical food chain consisting of grass, grasshoppers, sparrows, and hawks, that grasshopper are

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Primary consumers

Question 22: Which of the followning is an example of a population?

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All of the students in your classroom

Question 23: Within an ecosystem, a tree is a

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Producer

Question 24: Which of the following associations is incorrect

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Herbivore- eats producers and performs photosythneis Question 25: In a food chain consisting of phytopplankon-zooplankton- fish-fisherman, the fisherman are

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Tertiary consumers Question 26: In addition to abiotic factors, community composition of platns can be severely compromised by

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Parasitees and pathogens.