Ch 44+45 Study Questions

The dangers of a warming climate come not simply from the temperature change, but the relatively rapid rate of this change. What consequences can arise due to the rapid increase in temperatures? (Select all that apply.) A. Pollinators and their plants may get out of sync if plants flower earlier. B. The benefit of warmer temperatures for turtles may cause them to outcompete other species. C. Seed plants and their dispersers may get out of sync, for instance if migrating birds change their timing. D. Some species will simply not be able to evolve quickly enough to adapt. E. The benefits of increased CO2 for plant growth will cause them to outcompete non-photosynthetic plants.

A. Pollinators and their plants may get out of sync if plants flower earlier. C. Seed plants and their dispersers may get out of sync, for instance if migrating birds change their timing. D. Some species will simply not be able to evolve quickly enough to adapt.

The world-wide changes in weather conditions observed over the last 60 years is referred to as: A. global climate change B. hurricanes C. hot temperatures D. the industrial revolution

A. global climate change

Which of the following are potential consequences of unchecked growth of the human population? Select all that apply. A. mass starvation B. disease epidemics C. war D. extreme damage to the natural environment (Hint: Discuss the long-term implications of unchecked human population growth)

A. mass starvation D. extreme damage to the natural environment ?

Populations are made up of ________? A. organisms B. communities C. ecosystems

A. organisms

Which of the following is a list of abiotic factors that affect the distribution of organisms? A. salinity, availability of oxygen, and the availability of light B. wind, availability of soil nutrients, and availability of prey species C. the presence of disease, temperature, and the availability of water D. presence of predators, the presence of disease, and the presence of fire

A. salinity, availability of oxygen, and the availability of light

A non-poisonous snake shakes its tail like a rattlesnake. This is an example of: A. camouflage B. Batesian mimicry C. Müllerian mimicry D. aposematic coloration

B. Batesian mimicry

Latitude, elevation, and ocean currents all affect where an ecosystem can exist on Earth. Select the answer below that most thoroughly explains why this statement is true. A. These factors influence plant growth rates B. These factors influence climate C. These factors influence humidity D. These factors influence rainfall (Hint: List and describe abiotic factors that affect the global distribution of plant and animal species)

B. These factors influence climate ?

Upwelling is important to marine plants primarily because A. it removes waste products B. it delivers nutrients C. it protects plants from herbivores D. it increases light availability

B. it delivers nutrients

Which of the following sequences correctly arranges biomes from MOST productive to LEAST productive? A. desert, tropical rainforest, chaparral B. tropical rainforests, temperature forest, desert C. arctic tundra, boreal forest, chaparral D. boreal forest, arctic tundra, temperate forest

B. tropical rainforests, temperature forest, desert

Which of the following consist of both biotic and abiotic components? Select all that apply. A. a population B. a community C. an ecosystme D. the biosphere

C. an ecosystme D. the biosphere

What condition is necessary for zero population growth? A. high death rates B. small population size C. birth rate=death rate D. low fecundity

C. birth rate=death rate

Which of the following is an example of intraspecific competition? A. zebras and gazelles competing for grasses to eat B. an oak tree growing taller than neighboring dandelions, gaining access to more light. C. two baby bird siblings fighting for the food their parents have brought to the nest D. spider preying on flies

C. two baby bird siblings fighting for the food their parents have brought to the nest

Considering populations of elephants, horses, house cats, and mice which population would expect to have the highest population density? A. elephant B. horses C. house cats D. mice

D. mice

Courtship displays are (select all that apply): A. signals B. behaviors C. migration patterns D. common among asexual individuals

A. signals B. behaviors

Which of the following adaptations would you expect to directly enable species to migrate long distances? Select all that apply. A. roots B. camoflaged fur C. endurance D. ability to hibernate E. wings (Hint: List and describe abiotic factors that affect the global distribution of plant and animal species)

B. camoflaged fur E. wings ?

Typically, invasive species: A. are mimics of native species B. compete with native species for resources C. are parasites on native species D. promote the native keystone species

B. compete with native species for resources

You are planning a research project studying population dynamics. You plan to tag and release individuals from one species of mammal in a small 100 acre state park. Which species will provide the most data? A. rabbit B. mountain lion C. coyote D. shrew

D. shrew

Which of the following organisms you expect to have the highest fecundity? A. dogs B. elephants C. spiders D. humans

C. spiders

Most accurately, the mortality rate of a population reflects: A. the total number of individuals who died B. the number of individuals that died in a particular age group C. the proportion of individuals who died in a population D. life expectancy (Hint: Use life tables to calculate mortality rates)

C. the proportion of individuals who died in a population

A population ecologist primarily studies A. the interactions between species B. how a species interacts with the abiotic environment C. adaptations of a particular species that promote survival in its habitat D. groups of individuals of the same species and how their numbers change in time

D. groups of individuals of the same species and how their numbers change in time