16 Jun BIO FINAL EXAM – An ecosystem
Question
1.
An ecosystem
consists of all of the living organisms in a given area.
is composed of the plant life and climate of a given area.
consists of all of the living and non-living things functioning together in an area.
is composed of all of the abiotic factors that influence living organisms in a given area.
consists of all of the living animals in a given area.
2.
_____ and _____ are the major factors that determine climate.
Wind; elevation
Precipitation; wind
Temperature; precipitation
Elevation; temperature
Elevation; precipitation
3.
The majority of the world’s temperate forests exist
between 0 and 30 degrees latitude.
only on the windward side of mountains.
at 0 degrees latitude.
between 60 and 90 degrees latitude.
between 30 and 60 degrees latitude.
4.
Cold deserts generally exist at
90 degrees N and S latitude.
0 degrees latitude.
60 degrees N and S latitude.
Both the second and fourth answer choices are correct.
30 degrees N and S latitude.
5.
Wind circulation patterns are driven by
the tilt of Earth’s axis.
the rotation of Earth on its axis.
the uneven heating of Earth’s surface.
ocean currents.
the yearly progression of the seasons.
6.
Most of the carbon in the Earth’s atmosphere exists as
carbon tetrachloride, CCl4.
chlorofluorocarbons, CFCs.
methane, CH4.
carbonic acid, H2CO3.
carbon dioxide, CO2.
7.
When two species battle for resources until one is driven locally extinct, the process is called
character displacement.
resource partitioning.
competitive exclusion.
parasitism.
mutualism.
8.
In the interaction of two types of organisms in a habitat, one organism benefits from its interaction with the other, but the other organism suffers. What is the name for this interaction?
commensalism
dependent
selective
destructive
parasitism
9.
A habitat with ____________________ disturbance is expected to have the greatest species richness.
predictable
unpredictable
very little
an intermediate amount of
a great deal of
10.
What does it mean to say that a species is endangered?
That species has a long gestation period.
That species is in imminent danger of extinction.
That species is only found in select habitats.
That species has many natural predators.
That species is often consumed by humans for food.
11.
The current mass extinction is believed to be primarily caused by
asteroid impact.
human actions.
rising sea levels.
plate tectonics.
reduction in the amount of oxygen in the atmosphere.
12.
Fossil fuels are composed largely of
hydrogen, oxygen, and carbon.
hydrogen and carbon.
carbon and oxygen.
hydrogen and oxygen.
hydrogen and sulfur.
13.
Which of the following is considered to be a greenhouse gas?
nitrogen
nitrogen dioxide
both methane and carbon dioxide
methane
carbon dioxide
14.
Ozone is a molecule with the chemical formula
O4.
O2.
HO2.
O3
HO.
15.
Behaviors that do not require environmental input for their development are called
fixed action patterns.
reciprocal altruism.
instincts.
learned behaviors.
complex behaviors.
16.
Assume that you carry an allele, R, which causes you to help individuals to whom you are not related. This help increases their fitness and decreases yours. The frequency of allele R may still increase in the population
if the decrease in fitness to you is significantly greater than the increase in fitness to the recipient of your help.
if individuals you help are likely to return the favor and help you at some point in the future.
Under these circumstances, the frequency of allele R cannot increase in this population.
if the population size is decreasing.
if you and your relatives share this allele.
17.
Most apparent acts of altruism in the animal kingdom have proved, on closer inspection, not to be truly altruistic. Instead, they have evolved as a consequence of either _____________________ or _____________________.
kin selection; inclusive fitness
monogamy; polygamy
kin selection; reciprocal altruism
reproductive investment; reciprocal altruism
competition; courtship
18.
When one vervet monkey grooms another, the monkey being groomed has its fitness improved because
the groomed monkey looks better afterward and is more likely to find mates.
the groomer is avoiding an antagonistic encounter.
the groomer is removing parasites.
it now owes an obligation to the groomer.
as a result of the grooming, the percentage of grooming alleles has increased in the population.
19.
Which of the following is the best way to distinguish male from female?
Males are more aggressive.
Males produce motile gametes.
Males are more brightly colored.
Males are larger.
All of the above answer choices are correct.
20.
The energy that a parent puts into the growth, feeding, and care of offspring is called
total reproductive output.
reproductive investment.
kin selection.
the mating system.
reproductive success.
21.
Because it is possible for a female to mate with multiple males, any of whom could be the father, male mammals and birds will always
have some degree of paternity uncertainty.
invest more in the care of the offspring.
mate with kin that they can trust.
be the choosier sex in mating.
invest less in the care of the offspring.
22.
The sex with the greater energetic investment in reproduction will be ___________________ when it comes to mating.
more discriminating
more exhaustive
more competitive
less discriminating
less interested
23.
Polygamy and monogamy are two types of
dominance hierarchies.
acoustical communications.
kinship systems.
learned behaviors.
mating systems.
24.
When the sexes of a species differ in size or appearance, it is called
variance in reproductive success.
sexual dimorphism.
polygamy.
the mating system.
sexism.
25.
Life arose from non-life around _________ years ago.
400 billion
4 billion
4 million
4 trillion
4 thousand
26.
Which of the following gases was the least abundant in the Earth’s atmosphere 3.5 billion years ago?
water vapor
carbon dioxide
hydrogen
nitrogen
oxygen
27.
Which of the following lists the selected taxonomic categories in proper hierarchical order (from most inclusive to least inclusive)?
Order; Family; Genus; Class
Phylum; Class; Family; Genus
Kingdom; Order; Class; Species
Phylum; Family; Class; Genus
Family; Class; Order; Species
28.
Homo sapiens is the name of a species. Homo is the name of a genus. Hominidae is the name of a _____. Primate is the name of an order. Mammal is the name of a class. Animal is the name of a kingdom. Eukaryote is the name of a domain.
grade
family
subspecies
variety
genera
29.
Early seed plants were pollinated by
butterflies.
box turtles.
birds.
bees.
wind.
30.
What is endosperm?
the male portion of a flowering plant
tissue that develops into a protective seed coat surrounding the embryo
the female portion of a flowering plant
a food-storing tissue of the seed
the leaves that are part of the embryo
31.
Which of the following most clearly defines the process of pollination?
food is broken down and energy is released
the germination of a seed
the joining of egg and sperm cells
the transfer of pollen grains to the pistil
the attraction of an insect to a flower
32.
The outer green leaf-like portions of a flower enclose the inner petals like a protective barrier. Can you name this outermost portion from the choices below?
the carpels
the pistil
the leaves
the sepals
the stalk
33.
The female parts of a flower are the
sepal, filament, ovary, and ovule.
anther, filament, style, and ovary.
stigma, ovary, ovule, and filament.
anther, ovary, and ovule.
stigma, style, ovary, and ovule.
34.
Ovaries contain ovules. Ovaries mature into fruits, and ovules mature into seeds. Using this information, determine which of the following “vegetables” is technically a fruit?
potato
lettuce
broccoli
green beans
celery
35.
All fungi are multicellular, but some also have a unicellular form known as
seeds.
hyphae.
spores.
a fruiting body.
yeast
36.
The three most fundamental groups of organisms on the planet are
plants, animals, and bacteria.
bacteria, animals, and eukarya.
bacteria, archaea, and protista.
plants, animals, and eukarya.
bacteria, archaea, and eukarya.
37.
In the human body,
the bacterial cells are larger than the eukaryotic cells.
bacterial cells can survive only inside the eukaryotic cells.
there are more microbial cells than human cells.
archaea can survive, but bacteria are killed by the immune system.
the diversity of bacterial cells living in the mouth is exceeded by the diversity living on the skin.
38.
Spherical bacteria are known as
cocci.
viruses.
spirilli.
bacilli.
Gram-negative.
39.
Gram-positive bacteria are colored purple by the Gram stain because they have
a layer of glycoprotein called peptidoglycan on the outside of the cell wall.
a layer of glycoprotein called peptidoglycan beneath a membrane.
a capsule that lies outside the cell wall.
circular DNA molecules called plasmids that take up the stain.
circular DNA molecules called plasmids that repel the stain.
40.
__________ were the first organisms in the history of life on Earth that could use solar energy to build organic compounds from carbon dioxide, and in the process break down water molecules to release oxygen.
Cyanobacteria
Chemolithotrophs
Retroviruses
Chemoorganotrophs
Plants
41.
Antibiotics have no effect on
Streptococcus bacteria.
Staphylococcus bacteria.
cholera.
Antibiotics are effective against all of the above.
viruses.
42.
The basic structure of a virus consists of genetic information in the form of
DNA or RNA enclosed within a protein coat, along with a few enzymes.
RNA, a protein coat, and reverse transcriptase in order to turn its RNA to DNA.
DNA.
DNA or RNA enclosed within a protein coat.
DNA, a protein coat, and polymerase to replicate its DNA.
43.
What is the most effective medical approach to treating viral infections?
drugs that target cell walls
drugs that target enzymes
antibiotics
vaccines
drugs that target ATP synthesis
44.
If r = 5 for a population at a given time (t) when N = 100, what will the population size be at time t + 2 (two generations later)?
500
105
5000
2500
110
45.
Population density is determined by the number of
individual organisms in a given area.
species in a given area.
individuals of a species in an ecosystem.
breeding individuals of a species in a given area.
individuals of a species in a given area.
46.
Density-dependent and density-independent factors influence the growth of a population by causing changes in the
birth rate and death rate.
age structure and birth rate.
pattern of dispersion and carrying capacity.
death rate and pattern of dispersion.
carrying capacity and age structure.
47.
When does the growth rate of a population equal zero?
when N is zero
when deaths exceed births
when N/K is one
when N/K is zero
when N/K is one-half
48.
Which of the following best exemplifies an organism with a type I survivorship curve?
elephants
wild birds
annual plants
sea turtles
oysters
49.
Mutations that cause sickness and death after reproduction
are unlikely to occur.
can be passed on to future generations.
are passed on to future generations only in species that have long life spans.
are passed on to future generations only in species that have short life spans.
will not be passed on to future generations.
50.
When the hazard factor is low, individuals tend to reproduce
only during particular seasons.
later in life.
less often.
earlier in life.
more often.
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.