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BIOL 1022 Exam 2
Terms in this set (58)
The first organisms on earth were probably
A mollusk's (such as a clam) shell is secreted by the animal's
Which of the following is not a feature of mammals?
Have hair on their bodies.
Produce milk to feed their babies
The type of mollusk that has tentacles (like an octopus or squid) is a
A bacterial cell has which of the following structures?
Animals, mosses and ferns all have sperm that use flagella to swim through liquid to reach the egg.
One type of bacterium that has a corkscrew (spiral) shape and causes Lyme disease is a/an
Morel (sponge) mushrooms and truffels are examples of sac fungi.
Birds are probably descended from
dinosaurs or reptiles
The amniotic egg is found in
In a fungus such as a mushroom growing on a dead tree, the majority of the organism's biomass is actually located
This organism is heterotrophic, has a cell wall made of chitin, is not mobile, has a nucleus, and is a decomposer. It is a
This organism is heterotrophic, multicellular, and has no cell wall. It is a(n)
Fungi obtain food how?
from other organisms
Which of the following are NOT members of the phylum Cnidaria (or Coelenterata)?
This organism is big and multicellular, is a photoautotroph, the cell walls are made of cellulose, and it looks green. It is a
Bryophytes such as mosses lack
Which evolutionary plant innovation eliminated the need for sperm to swim through water in order to fertilize an egg, resulting in plants being truly adapted for reproduction on land?
When walking in a tropical forest you come upon a 5 foot tall plant that does not produce flowers or seeds. In which of these groups does the plant belong?
Elephantiasis is an enlargement of legs, arms, scrotum, and other tissues caused by
microscopic nematodes that reproduce and clog lymph glands, causing infection and limbs to swell
The serious disease in dogs called heartworm is caused by
What two animal phyla are considered to be deuterostomes?
echinoderms and chordates
The characteristic that is common to all Cnidarians (such as jellyfish) is
The disease called malaria is caused by a __________.
Which of the following parasites is a roundworm (Nematoda)?
In taxonomic classification Families are subdivided into Genera.
Which type of arthropod has six legs and three body parts?
A sea star ("starfish") is
Members of which phylum have a notochord, dorsal nerve cord, and pharyngeal gill slits at some time in their life cycle?
All of the following are types of mammals EXCEPT a/an
B. duck-billed platypus.
E. All of these are mammals.
The diseases called influenza, rabies, AIDS, measles, and smallpox are caused by __________.
A community ecologist will study_______
How the interactions between species affect community structure and organization.
The maximum population density of a given species that a defined geographical area can sustain over time is known as the ________
carrying capacity (K)
A certain plant has a short life span, it has a high investment in seed production and produces very many seeds, but each seed is small and is wind-dispersed. This is an example of a(n)_________
In many developing countries, the population pyramid is broad at the base and narrow at the top. This indicates that_________
population is growing
The human population is currently approximately _____ and still growing.
Food and space are __________ limiting factors.
Many insects resemble something that they are not, such as thorns or bird droppings. This is an example of ________
Competition between members of two different species is
A botanist has found that the giant saguaro, Carnegiea gigantea, lives in dry, sandy areas at altitudes below the freeze line. She has described the __________ of saguaro.
The zebra mussel, Dreissena polymorpha, was introduced to the U.S. in the late 1980s from its native habitat in eastern Europe, brought accidentally by ships entering the canals of the Great Lakes. The dense populations are threatening many native species of mollusk with extinction. This is an example of
invasive species or competitive exclusion
In 1975 in Sweden, mange mites were found to infest the carnivorous red fox, causing hair loss, skin deterioration, and finally death. At its peak, this mange, specific to this fox, reduced the population of the fox by over 70% in Sweden. Biologists noted that hare and grouse populations increased in number by a factor of 2-4. Most likely, the hares increased because
the fox is the predator of the hare and the grouse so if the foxes die then the hares and grouses won't be hunted as much
According to current scientific evidence, which kind of living primate is most closely related to humans?
A very tasty butterfly (the viceroy butterfly) evolved to have the same coloration as a butterfly that it is not closely related to but that has high concentrations of extremely bad tasting toxic compounds in its body (the monarch butterfly). This is an example of
Several lines of evidence, including fossils and a genetic analysis of different groups of modern humans, suggest that our species originated and spread out from where?
47) Many plant species produce flowers of a certain color and shape to attract honeybees. These plants produce nectar, and the bees transport pollen from one plant to another while searching for nectar. This is an example of
A trophic level is a(n)
each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy
The most closely-related nonliving species to the humans, based on the fossil record, is
A wolf eats a rabbit that eats grass on a prairie in Wisconsin. The wolf is a
Phytoplankton (such as algae) are examples of a
The energy lost as it passes from one trophic level to another is usually at least
The "ozone hole" is
any part of the ozone layer that has become depleted by atmospheric pollution, resulting in excess ultraviolet radiation passing through the atmosphere.
A hiker has walked up Mount Washington every weekend for the last few decades. She has noticed that it rains more near the summit than the base. This is because
warm air cools as it rises and it can't hold as much moisture
one organism is benefitted and the other is neither harmed nor benefitted
Permafrost is a characteristic of __________ and is __________.
tundra; permanent ice
Taiga is characterized by
also known as boreal forest or snow forest, is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. The taiga is the world's largest biome apart from the oceans.
When snowshoe hare populations decline, lynx populations also eventually decline.
Competition by different species of warblers is often minimized by resource partitioning.
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