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flower555 flower555
wrote...
Posts: 46
Rep: 1 0
13 years ago
I desperately need help and i got a really bad grade on this test. For corrections i have to explain why the answer is right. will someone explain why these answers are right.
Thanks for all your help!!!!




1) In the development of terrestrial biomes, which factor is most dependent on all the others?
Right answer: the species of colonizing animals

2) A cage containing male mosquitoes has a small earphone placed on top, though which the sound of a female mosquito is played. All the males immediately fly to the earphone and thrust their abdomens through the fabric of the cage. Which of the  following best describes the reason for this behavior?
Right answer: Copulation is a fixed action pattern, and the female flight sound is a sign stimulus that initiates it.

3) A type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify though later experiences is called.
Right answer: imprinting

4) You turn on a light and observe cockroaches scurrying to dark hiding places. What have you observed?
Right answer: Taxis

5) Which statement below about mating behavior is incorrect?
Right answer: The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair.(why is this incorrect?)

6)Learning in which an associated stimulus may be used to elicit the same behavioral response as the original sign stimulus is called?
 Right Answer: Classical conditioning

7) The presence of altruistic behavior in animals is most likely due to kin selection, a theory maintaining that :
Right answer: genes enhance survival of copies of themselves by directing organisms to assists others who share those genes.

8) Which of the following would be most likely to exhibit uniform dispersion?
Right answer: red squirrels, which hide food and actively defend territories.

9) on the graph there is a line that is drawn like stair steps. Why does this curve describe in a marine crustacean that molts?

10) Assuming these age structure diagrams describes human populations, which population is likely to experience zero population growth?
Right answer: number 3

11) The presence of all of the following tend to increase species diversity except:
Right answer: competitive exclusion

12) The sum total of an organism’s interactions with the biotic and abiotic resources of its environment is called its
Right answer: ecological niche

13) Which of the following is an example of Mullerian mimicry?
Right answer: two species of unpalatable butterfly that have the same color pattern

14) Following clear cutting of a broadleaf forest several hundred years ago, the land was colonized by herbaceous species that were placed largely over time by shrubs, then by forest trees. Assuming the growth of the shrubs and trees are enhanced by the soil holding properties of the herbaceous plants, which of the following processes best describes the progression from herbaceous plants to forest trees.
Right answer: secondary succession ; facilitation

15) There are more species in tropical areas than in places further from the equator. This probably a result of
Right answer: a longer growing season

16) What is the fundamental difference between matter and energy?
Right answer: Matter is cycled through ecosystems , energy is not

17) Which of the following terms encompasses all of the others?
Right answer: heterotrophy

18) How does phosphorous normally enter the atmosphere?
Right answer: it does not enter the atmosphere biologically significant amounts



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wrote...
Valued Member
Educator
13 years ago
1) In the development of terrestrial biomes, which factor is most dependent on all the others?
Right answer: the species of colonizing animals

I can't answer this because I don't know the others Undecided.

2) A cage containing male mosquitoes has a small earphone placed on top, though which the sound of a female mosquito is played. All the males immediately fly to the earphone and thrust their abdomens through the fabric of the cage. Which of the  following best describes the reason for this behavior?
Right answer: Copulation is a fixed action pattern, and the female flight sound is a sign stimulus that initiates it.

Mating in mosquitoes is an instinctive behavioral sequence that is indivisible and runs to completion. The sound they hear and the actions that result is an innate response (they don't think about it, they just do it).

3) A type of learning that can occur only during a brief period of early life and results in a behavior that is difficult to modify though later experiences is called.
Right answer: imprinting

So say if you raise a bird from the time it hatched, it will imprint on you, thinking like you're its mother. The problem with this is, it needs its mother to teach it where to fly or migrate, how to find food in the wild and decipher what is good food and what is not.
flower555 Author
wrote...
13 years ago
thank u for the help oculd u answer the rest of these!!!!!
wrote...
Valued Member
Educator
13 years ago
4) You turn on a light and observe cockroaches scurrying to dark hiding places. What have you observed?
Right answer: Taxis

Taxis is oriented movement of a motile organism in response to an external stimulus, as toward or away from light.

5) Which statement below about mating behavior is incorrect?
Right answer: The mating relationship in most mammals is monogamous, to ensure the reproductive success of the pair.

It's wrong because if mammals are monogamous, there is a less likely chance that there will be reproductive success. The more partners you have (polygamy), the more likely you will have offspring.

6)Learning in which an associated stimulus may be used to elicit the same behavioral response as the original sign stimulus is called?
Right Answer: Classical conditioning

In dogs, for example, rather than simply salivating in the presence of meat powder (an innate response to food), the dog begins to salivate in the presence of the person who normally feeds the dog. Therefore, if a particular stimulus in the dog's surroundings is present when the dog was presented with meat powder, then this stimulus will become associated with food and cause salivation on its own.

7) The presence of altruistic behavior in animals is most likely due to kin selection, a theory maintaining that:
Right answer: genes enhance survival of copies of themselves by directing organisms to assists others who share those genes.

Kin selection is an evolutionary theory that proposes that species are more likely to help those who are blood relatives because it will increase the odds of gene transmission to future generations. The theory suggests that altruism towards close relatives occurs in order to ensure the continuation of shared genes. The more closely the individuals are related, the more likely people are to help.

 Which of the following would be most likely to exhibit uniform dispersion?
Right answer: red squirrels, which hide food and actively defend territories.

Uniform dispersion or spatial distribution means that organisms of a population are equally spaced apart. If the squirrels are all situated or concentrated ina single region, they will get extinct from that area so to ensure survival, they are disperse.

9) on the graph there is a line that is drawn like stair steps. Why does this curve describe in a marine crustacean that molts?

What are the x and y axis of the graph? Undecided

10) Assuming these age structure diagrams describes human populations, which population is likely to experience zero population growth?
Right answer: number 3

Need more information... Undecided

11) The presence of all of the following tend to increase species diversity except:
Right answer: competitive exclusion

The competitive exclusion states that two species competing for the same resources cannot stably coexist if other ecological factors are constant. If that is the case, how can the numbers increase?

12) The sum total of an organism’s interactions with the biotic and abiotic resources of its environment is called its
Right answer: ecological niche

The ecological niche involves both the place where an organism lives and the roles that an organism does in its habitat. For example, the ecological niche of a sunflower growing in the backyard includes absorbing light, water and nutrients (for photosynthesis), providing shelter and food for other organisms (e.g. bees, ants, etc.), and giving off oxygen into the atmosphere.

13) Which of the following is an example of Mullerian mimicry?
Right answer: two species of unpalatable butterfly that have the same color pattern

Perhaps one of the most well-known examples of Mullerian mimicry, the viceroy butterfly appears very similar to the noxious tasting monarch butterfly. Müllerian mimicry is a natural phenomenon when two or more harmful species, that are not closely related and share one or more common predators, have come to mimic each other's warning signals.
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