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Test sobre Bio Exam 1, creado por Bart Stasa el 05/12/2014.

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Bio Exam 1

Pregunta 1 de 21

1

Which of the following is an example of discovery science?

Selecciona una de las siguientes respuestas posibles:

  • observing what other students in your class are wearing

  • guessing the likely questions on an exam

  • testing a possible solution to a video game

  • determining the fastest route to drive from your apartment to school

Explicación

Pregunta 2 de 21

1

Which of the following is an example of hypothesis-driven science?

Selecciona una de las siguientes respuestas posibles:

  • testing whether or not dead batteries are preventing a TV remote from working

  • surveying the distribution of various majors at your school

  • sequencing the human genome

  • observing the activities of a pride of lions

Explicación

Pregunta 3 de 21

1

Which of the following lists the steps of the scientific method in their proper order?

Selecciona una de las siguientes respuestas posibles:

  • question, observation, hypothesis, prediction, experiment

  • observation, question, prediction, hypothesis, experiment

  • observation, question, hypothesis, prediction, experiment

  • observation, question, hypothesis, experiment, prediction

Explicación

Pregunta 4 de 21

1

A(n) _____________ is a testable explanation for an observation.

Selecciona una de las siguientes respuestas posibles:

  • prediction

  • idea

  • hypothesis

  • observation

Explicación

Pregunta 5 de 21

1

Screech owls eat blind snakes. But sometimes, a screech owl will bring a live, blind snake back to its nest. There the snake eats mites, larvae, and other pests that infest the nest. The presence of a blind snake improves the survival of young chicks. This story is an example of both predation and mutualism.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 6 de 21

1

There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood sucking ticks out of the rhino's ears. Answer the following question regarding these creatures' relationships.

The bird-rhino relationship is an example of ________.

Selecciona una de las siguientes respuestas posibles:

  • commensalism

  • mutualism

  • parasitism

  • predator-prey

Explicación

Pregunta 7 de 21

1

There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood sucking ticks out of the rhino's ears. Answer the following question regarding these creatures' relationships.

The bird-tick relationship is an example of ________.

Selecciona una de las siguientes respuestas posibles:

  • mutualism

  • parasitism

  • commensalism

  • predator-prey

Explicación

Pregunta 8 de 21

1

There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood sucking ticks out of the rhino's ears. Answer the following question regarding these creatures' relationships.

The tick-rhino relationship is an example of ________.

Selecciona una de las siguientes respuestas posibles:

  • mutualism

  • commensalism

  • predator-prey

  • parasitism

Explicación

Pregunta 9 de 21

1

Which theorem states that no two species competing for the exact same resources can coexist?

Selecciona una de las siguientes respuestas posibles:

  • Resource partitioning principle

  • Dominance species principle

  • Competitive exclusion principle

  • Complex community network principle

Explicación

Pregunta 10 de 21

1

Before it was banned in the United States in 1972, the pesticide DDT was used to treat wetlands where mosquitos breed. There, algae would accumulate DDT in their tissues. Small aquatic animals such as mayfly nymphs would eat the algae. Fish would eat the mayfly nymphs and osprey would eat the fish. Which tropic level would have the highest DDT levels?

Selecciona una de las siguientes respuestas posibles:

  • secondary consumers

  • tertiary consumers

  • primary producers

  • primary consumers

Explicación

Pregunta 11 de 21

1

The tendency of toxins to accumulate in top predators is called biological ________.

Selecciona una de las siguientes respuestas posibles:

  • mitigation

  • concentration

  • magnification

  • remediation

Explicación

Pregunta 12 de 21

1

Robert Paine studied sea stars in the intertidal zone along the northern Pacific coast. When he removed sea stars from a study area, their prey, two mussel species, increased exponentially. This crowded out other species, and the overall biodiversity of the community was greatly reduced. In this example, you would call the sea star a keystone species.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 13 de 21

1

Species diversity is highest when ________.

Selecciona una de las siguientes respuestas posibles:

  • species richness is low and relative abundance is unevenly distributed

  • species richness is high and relative abundance is unevenly distributed

  • species richness is high and relative abundance is evenly distributed

  • species richness is low and relative abundance is evenly distributed

Explicación

Pregunta 14 de 21

1

What type of species, if removed from the community, could lead to the collapse of the entire community?

Selecciona una de las siguientes respuestas posibles:

  • Flagship species

  • Keystone species

  • Indicator species

  • Endemic species

Explicación

Pregunta 15 de 21

1

The buildup of soil on bare rock by the decomposition of early colonizers is characteristic of ________ succession.

Selecciona una de las siguientes respuestas posibles:

  • opportunistic

  • primary

  • secondary

  • ecological

Explicación

Pregunta 16 de 21

1

The emerald ash borer is an invasive insect species that has killed millions of ash trees since it was first identified as a threat in 2002. The U.S. Forest Service has a management plan that includes extensive surveys to detect new infestations, quarantines of materials from already infested forests, public education, chemical treatments, investigation of possible parasites that might attack the ash borer, and an investigation of cultural practices that might help reduce the threat. This control method is an example of biological control.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 17 de 21

1

The Asian kudzu bug (Megacopta cribaria) arrived in Atlanta in 2009 and is quickly spreading across the South. In addition to eating kudzu, it also eats soybeans and can decimate entire crops. The kudzu bug is a type of ________ species.

Selecciona una de las siguientes respuestas posibles:

  • control

  • journeyman

  • invasive

  • umbrella

Explicación

Pregunta 18 de 21

1

The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________.

Selecciona una de las siguientes respuestas posibles:

  • integrated pest control

  • intermediate pest control

  • multilevel species approach

  • none of the above

Explicación

Pregunta 19 de 21

1

Already, about 20% of Earth's coral reefs have been destroyed. Human activities are threatening __________% of the remaining coral reefs.

Selecciona una de las siguientes respuestas posibles:

  • 10%

  • 25%

  • 50%

  • 75%

Explicación

Pregunta 20 de 21

1

At what level is biodiversity often studied and measured?

Selecciona una de las siguientes respuestas posibles:

  • all of the above

  • The diversity of ecosystems on the planet

  • The diversity of species in an community

  • The diversity of genes in a population

Explicación

Pregunta 21 de 21

1

While there are many varieties of banana, only the Cavendish is suitable for mass production and worldwide trade. It is currently being decimated by a soil fungus in Asia. If the banana fungus should reach the Americas before a treatment is discovered, it could spell the end of bananas in North American supermarkets. If that were to happen, how would the extinction of the Cavendish banana be categorized?

Selecciona una de las siguientes respuestas posibles:

  • Brought on by habitat destruction

  • Brought on by overharvesting

  • Brought on by pollution

  • Brought on by an invasive species

Explicación

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