Biology Exam: Evolution, Ecology, and Biomes - Prof. Pamela Rasmussen, Exams of Biology

This document consists of a biology exam focusing on various topics including evolution, ecology, and biomes. It includes multiple-choice questions covering concepts such as bacterial resistance to antibiotics, evolution by natural selection, multicellular organisms, and ecological hierarchies. It also covers different biomes and their characteristics.

Typology: Exams

2010/2011

Uploaded on 05/03/2011

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Exam 1
1) Bacteria evolve resistance antibiotics by
a. A completely different process than that which results in insects evolving insecticide
resistance
b. Learning to avoid the antibiotics
c. Some bacteria, by chance, having a mutation that enables them to survive and pass on
the genes for immunity
d. Being in tissues that arenโ€™t reached by the drugs
2) Which is not a shared characteristic of nearly all living organisms?
a. They consist of cells
b. They convert molecules from the environment into different organic molecules
c. They reproduce sexually
d. They evolve
e. All the above are characteristics of nearly all living organisms
3) Descent with modification is another way of saying
a. Evolution
b. Natural selection
c. That all organisms produce more offspring than can survive
d. That natural selection is non-random
4) A multicellular organism
a. Exists entirely as cells
b. Has many interdependent cells, some with different functions
c. Is composed of single, aggregated cells
d. None of the above
5) Which is NOT a true statement about evolution?
a. The earliest evidence of life is from about 3.5 billion years ago
b. All living organisms are descended from a single, unbroken lineage
c. Evolution by natural selection is a random process
d. Natural selection is the main mechanism of evolution
6) Choose the correct hierarchy (from smallest to largest):
a. Atoms molecules tissues cells systems organs
b. Atoms molecules cells tissues systems organs
c. Atoms molecules cells tissues organs systems
d. None of the above
7) Choose the correct ecological hierarchy (from least inclusive to most inclusive):
a. Community species population ecosystem biosphere
b. Population species community ecosystem biosphere
c. Species population community ecosystem biosphere
d. Species population ecosystem community biosphere
8) Choose the correct sequence in the history of life (from earliest of latest):
a. Cells originate - photosysnthesis evolves - aerobic metabolism evolves - eukaryotes
evolve โ€“ multicellularity evolves
b. Cells originiate โ€“ photosynthesis evolves โ€“ multicellularity evolves โ€“ eukaryotes evolve
c. Photosynthesis evolves โ€“ cells originates โ€“ multicellularity evolves โ€“ aerobic metabolism
evolves
d. Aerobic metabolism evolves โ€“ cells originate โ€“ photosynthesis evolves โ€“ eukaryotes
evolve โ€“ multicellularity evolves
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Exam 1

  1. Bacteria evolve resistance antibiotics by a. A completely different process than that which results in insects evolving insecticide resistance b. Learning to avoid the antibiotics c. Some bacteria, by chance, having a mutation that enables them to survive and pass on the genes for immunity d. Being in tissues that arenโ€™t reached by the drugs
  2. Which is not a shared characteristic of nearly all living organisms? a. They consist of cells b. They convert molecules from the environment into different organic molecules c. They reproduce sexually d. They evolve e. All the above are characteristics of nearly all living organisms
  3. Descent with modification is another way of saying a. Evolution b. Natural selection c. That all organisms produce more offspring than can survive d. That natural selection is non-random
  4. A multicellular organism a. Exists entirely as cells b. Has many interdependent cells, some with different functions c. Is composed of single, aggregated cells d. None of the above
  5. Which is NOT a true statement about evolution? a. The earliest evidence of life is from about 3.5 billion years ago b. All living organisms are descended from a single, unbroken lineage c. Evolution by natural selection is a random process d. Natural selection is the main mechanism of evolution
  6. Choose the correct hierarchy (from smallest to largest): a. Atoms molecules tissues cells systems organs b. Atoms molecules cells tissues systems organs c. Atoms molecules cells tissues organs systems d. None of the above
  7. Choose the correct ecological hierarchy (from least inclusive to most inclusive): a. Community species population ecosystem biosphere b. Population species community ecosystem biosphere c. Species population community ecosystem biosphere d. Species population ecosystem community biosphere
  8. Choose the correct sequence in the history of life (from earliest of latest): a. Cells originate - photosysnthesis evolves - aerobic metabolism evolves - eukaryotes evolve โ€“ multicellularity evolves b. Cells originiate โ€“ photosynthesis evolves โ€“ multicellularity evolves โ€“ eukaryotes evolve c. Photosynthesis evolves โ€“ cells originates โ€“ multicellularity evolves โ€“ aerobic metabolism evolves d. Aerobic metabolism evolves โ€“ cells originate โ€“ photosynthesis evolves โ€“ eukaryotes evolve โ€“ multicellularity evolves
  1. Which is not a characteristic of good model systems in biology? a. Easy to care for b. Inexpensive to keep and rear c. Fast reproduction d. Large
  2. What is the main impact of the facts that the equator is closest to the Sun and represents a relatively small area to heat? a. The northern and southern hemispheres experience seasons b. The prevailing winds swing southward in both hemispheres c. The earth rotates on its axis d. The equator is warmer than are higher latitudes
  3. Which of the following is an example of weather? a. A thunderstorm b. The average number of thunderstorms in the Midwest over a ten-year period c. The number of inches of rainfall in Hawaii in the 1900s d. A volcanic eruption e. All the above
  4. A rainshadow is a. Where rain falls after it crosses the mountains because the air cools then falls there, so the windward side is dry b. Where mountains intercept moisture-laden air so it falls before crossing them, so the leeward side is dry c. A phenomenon resulting in equal amounts of precipitation on both sides of a mountain range d. A moderating influence on climate
  5. In which biome does biological activity of many types occur at high levels year round? a. Chaparral b. Thron forest c. Rainforest d. Savannah
  6. Which of the following is not characteristic of tropical rainforest floras? a. Drip tips to leaves b. Buttressed tree trunks c. Deep leaf litter layer d. High degree of stratification
  7. Which biome is most likely to have many complex coevolved relationships between animal pollinators and flowers? a. Temperate grasslands b. Boreal forest c. Cold deserts d. Tropical evergreen forests
  8. In which biome is nutrient cycling particularly rapid? a. Cold deserts b. Hot deserts c. Tropical evergreen forests d. Boreal forests
  1. A table listing such items as age, observed number of organism alive each year, and life expectancy is known as a(n) a. Life table b. Mortality table c. Survivorship table d. Rate table e. Insurance table
  2. The most common kind of dispersion in nature is a. Clumped b. Random c. Uniform d. Indeterminant e. Dispersive
  3. In models of sigmoidal (logistic) population growth a. Population growth rate slows dramatically as N approaches K b. New individuals are added to the population most rapidly at the beginning of the populationโ€™s growth c. Only density-dependent factors affect the rate of population growth d. Only density independent factors affect the rate of population growth e. Carrying capacity is never reached
  4. Carrying capacity is a. Seldom reached by marine producers and consumers because of the vast resources of the ocean b. The maximum population size that a particular environment can support c. Fixed for most species over most of their range most of the time d. Determined by density and dispersion data e. The factor that leads to exponential growth
  5. In which of the following habitats would you expect to find the largest number of K-selected individuals? a. A recently abandoned agricultural field in Ohio b. The flora and fauna of a coral reef in Caribbean c. South Florida after a hurricane d. A newly emergent volcanic island
  6. Which of the following describes having more than one reproductive episode during a lifetime? a. Cohort b. Dispersion c. Iteroparous d. Semelparous
  7. Why is territoriality an adaptive behavior for songbirds maintaining populations at or near their carrying capacity? a. Songbirds expend a tremendous amount of energy defending territories so that they spend less time feeding their young and fledgling mortality increases b. Only the fittest males defend territories and they attract the fittest females so the best genes are always conveyed to the next generation c. Songbird males defend territories commensurate with the size from which they can derive adequate resources for themselves, their mate, and their chicks d. Many individuals are killed in the ritualistic conflicts that go along with territorial defense

e. Songbirds make improvements to the territories they inhabit so that they can all enjoy larger clutches and successfully fledged chicks

  1. Which of the following contribute directly dependent regulation of populations? a. Intraspecific competition for nutrients b. Earthquakes c. Floods d. Weather catastrophes
  2. How is competition classified? a. +/+ b. +/- c. -/+ d. +/ e. -/-
  3. Choose the correct statement regarding the distribution of biomass in aquatic vs. terrestrial environments: a. Biomass distribution always takes the form of an upright pyramid b. In all aquatic ecosystems, chemosynthetic plants are dominant c. The biomass distribution will always be similar between aquatic and terrestrial environments d. In aquatic ecosystems, there may be an inverted distribution of biomass
  4. A parasitic animal that has a simple worm shaped body and that can absorb nutrients through its body wall is likely to be a. An endoparasite b. An ectoparasite c. A brood parasite d. All the above are equally probable
  5. Animals with armor, bright colors, or chemical defenses are likely to be a. Primary consumers b. Secondary consumers c. Carnivores d. Tertiary consumers
  6. A stinging bee species that resembles a stinging wasp in color pattern and shape is taking advantage of a. Batesian mimicry b. Mullerian mimicry c. The poison of the poison dart frog d. Crypsis
  7. How are species richness and disturbance levels usually related? a. Species richness is highest at low levels of disturbance b. Species richness is lowest at low levels of disturbance c. Species richness is highest at high levels of disturbance d. Species richness is highest at moderate levels of disturbance
  8. Keystone species a. Form the majority of the biomass of their ecosystems b. Have no influence on the species richness of their communities c. Are often predators d. Are numerically more abundant in their ecosystems than expected based on normal food pyramids

e. About 90% in most ecosystems

  1. How does inefficient transfer of energy among trophic levels result in the typically high endangerment status of many top predators? a. Top level predators have small populations that are sparsely distributed b. Predators have relatively large populations c. Predators are more disease prone than animals at lower trophic levels d. Predators have short life spans and short reproductive periods
  2. Nitrogen is available to plants only in the form of a. N 2 in the atmosphere b. Uric acid from animal excretions c. Amino acids from decomposing plant and animal proteins d. Nitrate ions in the soil
  3. How does phosphorous normally enter ecosystems? a. Cellular respiration b. Photosynthesis c. Rock weathering d. Phosphorous fixation from the air