WIS2552 Topics 1-8, WIS2552 EXAM 1 Questions With Verified Answers
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WIS2552
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WIS2552
WIS2552 Topics 1-8, WIS2552 EXAM 1
Questions With Verified Answers
Multicellularity might have evolved from coloniality. - answertrue
Some of Pasteur's sterile water flasks are still on display today. - answerTrue
Both mitochondria and chloroplasts have two membranes. - answertrue
Protenoid sp...
DNA in the nuclei of eukaryotic cells is complexed with ____. - answer✔proteins.
The endosymbiosis theory argues that a ____ relationship was established between two cells. -
answer✔mutualistic
The first hominids appeared at the end of the ___. - answer✔Tertiary
The first dinosaurs appeared in the ____. - answer✔Triassic
_____ was the first period of the Cenozoic. - answer✔Tertiary
Prokaryortic cells contain _____. - answer✔RNA
Stanley Miller combined methane and ____ in water, in his experiment. - answer✔ammonia
Chloroplasts are found only in members of the Kingdome Plantae. - answer✔False
Redi's experiment involved denying ____ access to decaying meat. - answer✔files
The endosymbiosis theory argues that small prokaryotic cells were engulfed by _____. -
answer✔larger prokaryotic cells
The ____ era is broken down in Epochs. - answer✔Cenozoic
Pasteur bent the slender necks of glass flasks to prevent _____ from reaching sterile water. -
answer✔bacteria
The bony fish evolved in the _____ period of the Paleozoic. - answer✔Ordovician
Oparin converted elemental nitrogen, carbon, oxygen and hydrogen to ____. - answer✔amino
acids
Francisco Redi did an experiment to show that meat did not produce maggots by the process of
____. - answer✔spontaneous generation
The conversion of N2 to NH3 is exergonic - answer✔false
Denitrification occurs only ____. - answer✔when O2 is not available.
Rhizobium is an example of a ____ that plays a role in nitrogen fixation. - answer✔bacteria
The lower part of the atmosphere is called the ____. - answer✔Troposphere
Some ammonia is mineralized as ______. - answer✔NH4+
In a food web animals are never _____. - answer✔primary producers
Ammonia is a gas and has the chemical formula ____. - answer✔NH3
Through the evolutionary process, species may become increasingly adapted for narrower
environmental conditions and this can make them more rare. - answer✔true
In photosynthesis, CO2 is converted to ___ and H2O. - answer✔sugars
Northern mockingbirds were introduced successfully to _____. - answer✔Hawaiian Islands
A top predator in a food chain is a ______. - answer✔Tertiary consumer
Some nitrogen is fixed by the action of lightning. - answer✔true
Denitrification is the conversion of the ____ to N2. - answer✔NO2
Plants take up inorganic nitrates and convert them to organic compounds in a process known as
____. - answer✔assimilation
Carbon is stored mostly as fossil fuels, CO2 and in ____. - answer✔vegetation
Rhizobium is found in nodules in association with _____ plants. - answer✔legume
Many ecologists argue that ecological efficiencies are about ___%. - answer✔10
A rabbit is an example of a ______. - answer✔primary consumer
Of the following ____ is the greenhouse gas most affected by human activities. - answer✔CO2
The conversion of amino acids back to ____ is called ammonification. - answer✔NH3
The symbiotic relationship between plant and Rhizobium is ___ in nature. - answer✔mutualisitc
Temperate species may tend to be more ecologically specialized than their tropical counterparts.
- answer✔false
Photosynthesis is essentially _____. - answer✔carbon fixation
Most of the gaseous nitrogen in the atmosphere exists in the form of ____. - answer✔N2
Energy in biological systems mostly exists in the form of ____ molecules. - answer✔ATP
The tropics may harbor more species with narrower niches than temperate species. -
answer✔true
Water moves through soil to the groundwater by the process of ____. - answer✔percolation
The conversion of ammonium ions to nitrates is called _____. - answer✔nitrification
_____ is another name for primary producers. - answer✔Autotroph
The ecological niche of a species may be based on _____. - answer✔any of these
The ____ is highly specialized for a diet of apple snails. - answer✔Everglades kite
The ____ was used as an example of a habitat-specilized species. - answer✔Cape Sable Seaside
Sparrow
Ecological pyramids illustrate the amount of ___ at various trophic levels. - answer✔biomass
Ecological pyramids were the brain child of ___. - answer✔Charles Elton
According to Darwin's theory a bat's wing is homologous with a _____. - answer✔penguin's
flipper
Darwin's theory of natural selection assumes that _____. - answer✔individuals vary
Of the following the ___ is not a tetrapod. - answer✔sea lamprey
Darwin based his theory partly on observations of farm animals. - answer✔true
Darwin argued that those individuals that ____ were naturally selected. - answer✔had more
offspring
The theory of the inheritance of acquired characteristics was advanced by _____. -
answer✔Lamarck
______ is an example of a sexually selected trait in passerine birds. - answer✔plumage
dichromatism
Darwin found fossils of _____ at high elevations in the Andes, suggesting that the Earth had
changed over time. - answer✔marine invertebrates
Darwin noted that there was no native ____ in Australian grasslands. - answer✔Rabbits
In the forelimb of tetrapods, the radius is always paired with the _____. - answer✔ulna
Darwin observed that there were no ____ on oceanic islands. - answer✔large herbivorous
mammals
Structures in different species such as the wings of insects and bats, are said to be analogous as
they ____. - answer✔have different embryological origins
In the mid-nineteenth century people mostly believed that species were ______. -
answer✔immutable
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