Question 9 2 points Save
Acid rain is caused by ___________ and results in ____________.
Question 9 answers
chlorofluorocarbons from refrigerators; a decrease in the ozone layer.
hydrochloric acid from power plants; "bleaching" lakes and trees.
carbon dioxide air pollution; global warming increasing the sea levels.
sulfur pollution combining with water vapor; damage to ecosystems.
Question 10 text Question 10 2 points Save
Ozone depletion in the atmosphere
Question 10 answers
leads to the formation of acid precipitation.
leads to a rise in chlorofluorocarbons.
allows more harmful radiation from the sun to reach the earth.
both b and c.
Question 11 text Question 11 2 points Save
Solar energy can be trapped in the atmosphere by
Question 11 answers
the chemical bonds of carbon dioxide.
the chemical bonds of ozone.
radiation.
sunlight.
Question 12 text Question 12 2 points Save
Which of the following is NOT an effect of chemical pollutants on the environment?
Question 12 answers
overconsumption of resources
biological magnification
loss of localized species diversity
thin, fragile eggshells of predatory birds
Question 13 text Question 13 2 points Save
Which of the following groups represent nonrenewable resources?
Question 13 answers
ecosystems, habitats, living species
topsoil, ground water, biomes
ground water, extinct species, topsoil
topsoil, ecosystems, biomes
Question 14 text Question 14 2 points Save
All of the following are important environmental problems that must be solved EXCEPT
Question 14 answers
increasing levels of ocean pollution.
dependence on fossil fuels.
rapid population growth.
coastal devastation by hurricanes.
Question 15 text Question 15 2 points Save
Which of the following are NOT used to classify kingdoms of organisms?
Question 15 answers
complexity of the organism
invertebrate or vertebrate
method of obtaining nutrition
type of cell that makes up the organism
Question 16 text Question 16 2 points Save
Which of the following are NOT protists?
Question 16 answers
fungi
algae
slime molds
diatoms
Question 17 text Question 17 2 points Save
The process by which cells become specialized in form and function is called
Question 17 answers
colonization.
aggregation.
collection.
differentiation.
Question 18 text Question 18 2 points Save
Levels of cellular organization that occur in plants and animals are
Question 18 answers
family, genus, species.
tissues, organs, organ systems.
colonial, aggregation, differentiation.
niche, habitat, ecosystem.
Question 19 text Question 19 2 points Save
Which is NOT a general characteristic of plants?
Question 19 answers
use oxygen to make usable energy
primary producers
have specialized cells
cell walls composed of cellulose
Question 20 text Question 20 2 points Save
Which of the following are characteristics of all animals?
Question 20 answers
multicellular, haploid cells that divide by mitosis, organisms with organ systems
multistage zygote development, vertebrates, reproduce sexually
99 percent invertebrates, heterotrophs, multicellular
both a and c.
Question 21 text Question 21 2 points Save
A group of specialized cells that transport fluids and nutrients is called
Question 21 answers
a multicellular autotroph.
a methanogen.
an aggregation.
vascular tissue.
Question 22 text Question 22 2 points Save
Which is an INCORRECT statement about the differences between invertebrates and vertebrates?
Question 22 answers
Most animals are not vertebrates; they are invertebrates.
Vertebrates have a backbone and spinal column while invertebrates do not have a backbone and spinal column.
Invertebrates do not have internal organs while vertebrates do have internal organs.
Vertebrates have a brain encased in a head while invertebrates do not have a brain encased in a head.
Question 23 text Question 23 2 points Save
A typical virus consists of a
Question 23 answers
protein coat and a cytoplasm core.
carbohydrate coat and a nucleic acid core.
protein coat and a nucleic acid core.
polysaccharide coat and a protein core.
Question 24 text Question 24 2 points Save
During initial HIV infection, the HIV virus attaches to CD4 receptors on a macrophage and then
Question 24 answers
attaches to a CCR5 receptor before it is able to enter the cell.
enters the cell through the CD4 receptors.
attaches to a lymphocyte that attempts to fight the virus on the macrophage.
HIV tricks the reverse transcriptase of the infected cell into making copies of the viral RNA molecule.
Question 25 text Question 25 2 points Save
Bacteria and eukaryotes share the characteristic of
Question 25 answers
multicellularity.
a cell nucleus.
a cell membrane.
all of the above.
Question 26 text Question 26 2 points Save
Two ways that bacteria cause disease are
Question 26 answers
toxins are released that break down and absorb host organic nutrients enzymes or enzymes are excreted that poison the host.
enzymes are released that break down and absorb host organic nutrients or toxins are excreted that poison the host.
enzymes are released that break down and absorb inorganic nutrients or toxins are excreted that poison the host.
through the lytic and lysogenic cycles.
Question 27 text Question 27 2 points Save
HIV is spread through the body
Question 27 answers
after it replicates and leaves the macrophage by rupturing it.
by taking over the host macrophage’s DNA and directing it to attack other cells.
by budding from the macrophage and enveloping itself with the host’s cell membrane.
by attaching the lymphocyte’s CCR5 receptors to itself which fools other lymphocytes.
Question 28 text Question 28 2 points Save
Which is NOT a human benefit of bacteria?
Question 28 answers
combat viral infections
clean the environment
make food
fix nitrogen
Question 29 text Question 29 2 points Save
Which kingdom of eukaryotes exhibits the broadest range of characteristics?
Question 29 answers
Animalia
Protista
Plantae
Eubacteria
Question 30 text Question 30 2 points Save
What is one environmental requirement of most protists?
Question 30 answers
water
sunlight
oxygen
warmth
Question 31 text Question 31 2 points Save
Which of the following is NOT a unifying feature of protists?
Question 31 answers
They do not develop complex multicellular reproductive structures.
They are eukaryotes that cannot be classified as animals, plants, or fungi.
They do not reproduce by forming embryos.
They are prokaryotic and have no nucleus to enclose their DNA.
Question 32 text Question 32 2 points Save
When Chlamydomonas reproduce sexually, it divides by mitosis, producing
Question 32 answers
zygospores.
sporophyte.
haploid gametes.
diploid gametes.
Question 33 text Question 33 2 points Save
In addition to causing disease, protists also affect humans through
Question 33 answers
their role in the nitrogen cycle.
their antibiotic properties.
their ability to clean up oil spills.
all of the above.
i know its alot but i hate biology
