Which of these is mismatched?
tetanus—bacterium
malaria—protozoan
kuru—prion
AIDS—virus
food poisoning—archaea
A researcher infects a bacterium with a bacteriophage (bacterial virus) and notices that the infection does not immediately bring about the destruction of the host cell. Instead, the phage genetic material is copied whenever the host reproduces. Which viral replication cycle is described here?
emergence cycle
integration cycle
lytic cycle
lysogenic cycle
biosynthetic cycle
Citrus tristeza virus (CTV) damages and kills susceptible citrus trees around the world. It can by spread by grafting of infected plants; and by aphids, insects with piercing mouthparts that they use to suck fluid from plants. Which of the following would not limit the spread of CTV?
use of insecticides to control the aphids
quarantine of fields with infected plants
destruction of infected plants
application of antibiotic drugs to citrus plants
production of transgenic citrus lines using genes from resistant plants
You take a large sample of soil and put it all into individual pots. You then divide the pots into two groups: In the first group, every pot of soil has been sterilized, and thus contains no bacteria. In the other group, none of the pots of soil has been sterilized. You plant soybean seeds in all the pots. What would you expect to see as the seeds sprout and grow?
The plants growing in the non-sterile soil are bigger because have mutualistic associations with nitrogen-fixing bacteria.
The plants growing in the sterile soil are bigger because they do not have to compete with nitrogen-fixing bacteria in order to obtain usable nitrogen.
The plants growing in the sterile soil are bigger because they have not been exposed to any bacteria.
The plants growing in the non-sterile soil are bigger because saprotrophic bacteria produce nutrients for them.
There is no difference in size between the plants growing in the sterile soil and those in the non-sterile soil.
which of the following groups has at least some members with cell walls?
protists, bacteria, and archaea
prokaryotes only
archaea only
bacteria only
protists only
Without bacteria in the environment?
adequate amounts of carbon would not be available to living organisms.
plants would not be able to grow due to lack of nitrogen.
bioremediation would have limited use as a tool to clean up pollutants.
there would be a shortage of decomposer organisms.
All of the choices are correct.
Which similarity is not shared between algae and plants?
Algae are photoautotrophs.
Algae are often green.
Algae are eukaryotes.
Algae are producers.
Most algae have some form of locomotion.
Which of the following are acellular?
protozoans
bacteria
algae
archaea
prions
Which of these does not belong in any Domain of life?
viruses
bacteria
protozoans
algae
archaea
Which of the following can cause disease?
bacteria
A + B + C
protists
viruses
A + B
Which statement about bacteria is incorrect?
All bacteria are pathogenic to humans.
Bacteria are prokaryotes.
Most bacteria are chemoheterotrophs.
Bacterial cells reproduce by binary fission.
A bacterial cell has one chromosome.
Apples, oranges, peanuts, and rice grains are produced by
lichens.
conifers.
ferns.
flowering plants.
mosses.
Mosses have to be short because ?
they lack eggs and sperm.
they are allergic to sunlight.
they need water.
they use animal pollinators.
they lack vascular tissue.
Most fungi in the environment function as
producers.
photoautotrophs.
decomposers.
parasites.
predators.
A mutualistic association between a fungus and a cyanobacteria or green algae is a
mushroom.
moss.
lichen.
mycorrhiza.
chytrid.
If you are studying a eukaryotic, multicellular, non-photosynthetic organism, what piece of information would be most useful in determining if it is a fungus or an animal?
It lives an aquatic environment.
It has cell walls.
It is a heterotroph.
It has specialized tissues.
All of the choices would be equally useful.
Beekeepers and scientists are puzzled and troubled by a decline in bee populations around the world. What would you predict as a likely consequence of the widespread lack of bees?
decline in conifer numbers
increase in prevalence of seedless vascular plants
inability of plants to obtain enough nitrogen
disappearance of mosses and ferns
loss of crop productivity
The fermentation capabilities of _____ are used to produce bread and alcoholic beverages.
mycorrhizal fungi
lichens
yeasts
mushrooms
molds
Which structure is a novel characteristic of angiosperms (flowering plants)?
seed
leaf
vascular tissue
Pollen
flower
Which of the following is the best definition of a fruit?
Any vegetable that doesn't make kids want to vomit
A pregnant flower
The colorful part of a plant
A round fleshy pod produced by plants
The sweet part of a plant
Conifers can invade dry habitats more easily than ferns because conifers have
spores
vascular tissue
seeds
flowers
alternation of generations
Many garden-supply stores sell root dips used to help plants that are being transplanted. Such dips are advertised as containing spores. What kind of spores should these dips contain?
yeasts
mycorrhizal fungi
fern
lichens
mold
What would you predict as a likely consequence of eradicating all fungi from soil before sowing it with plant seeds?
The plants would grow much more vigorously because they would not need to fight off fungal diseases.
No plants would be able to grow, because mycorrhizal fungi are essential for the germination of seeds.
The plants would grow much more vigorously because they would not have to compete with fungi for nutrients.
The plants would grow as normal, because the presence or absence of fungi has no impact on plants.
Although the plants might grow, they would be unlikely to thrive due to the lack of mycorrhizal fungi.
If a plant has vascular tissue, megaphylls, and seeds, but not flowers, then it is a(n)
gymnosperm.
fern.
lycophyte.
angiosperm.
bryophyte.
Which statement about fungi is incorrect?
Fungi are excellent decomposers.
Adult fungal cells are haploid.
Fungi are generally motile.
Fungi have cell walls.
Fungi are chemoheterotrophic by absorption.
Thank you very much, this is for my study guide and i need correct answers to study for my test
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