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WorksheetsBiology Review for Final Exam
Total questions: 29
Worksheet time: 28mins
This illustration shows the process of making a protein molecule. The site of protein synthesis in a cell is the
ribosome
amino acid
codon
tRNA
The evolutionary advantage when a rabbit blends into its environment is called....
mimicry.
warning coloration.
adaptive radiation.
protective coloration.
The genetic information in human and chimpanzee DNA shows a high degree of similarity, as humans share about 96-99% of their DNA code with chimpanzees. What is an explanation for this similarity?
They evolved from each other.
They evolved at the same time.
Their evolution is nearly complete.
Their evolution is nearly complete.
Which example illustrates commensalism and NOT mutualism?
Hippo dung (feces) is eaten by a large species of catfish native to African lakes. The catfish typically follow the hippo herds.
Cattle have protozoa living in their gut that digest cellulose. The cows are able to feed on grass, while the protozoa are sheltered inside the cow.
Oxpeckers remove parasitic fly larvae from the skin of buffalo. In exchange, they are protected from predatory cats, who will not challenge a buffalo.
Ants 'farm' aphid insects like cattle. Aphids suck the sap out of trees, which ants also feed on. In turn, the ants sting predators that attack the aphids.
Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make.
DNA --> messenger RNA --> transfer RNA --> protein
DNA --> transfer RNA --> messenger RNA --> protein
DNA --> transfer RNA --> protein --> messenger RNA
Protein --> messenger RNA --> transfer RNA --> DNA
A karyotype of a person with Down Syndrome is shown here. Which term is used to describe this type of genetic disorder?
deletion
recombination
transformation
trisomy
In piranha, fish with large teeth represent the dominant trait. Because the dominant trait masks the recessive trait, in a population of 1,000 piranhas, all with large teeth, we could expect about ________of the next generation of fish to have small teeth.
0%
25%
50%
100%
In any ecosystem, land-based and aquatic, matter, in the form of atoms and molecules, is cycled among all organisms. Organisms within every food web, have specific roles in continuing the cycle of nutrients.
In any food web, the organisms that are responsible for converting raw energy into usable chemical energy are collectively called (a)
In any ecosystem, land-based and aquatic, matter, in the form of atoms and molecules, is cycled among all organisms. Organisms within every food web, have specific roles in continuing the cycle of nutrients.
In any food web, the organisms that recycle the nutrients trapped in dead organisms are collectively called (a)
Epithelial Cells: Cells covering for internal and external body surfaces
If we were to compare the muscle cells of a puma to the epithelial cells, the muscle cells would contain relatively more ________?
lysosomes
ribosomes
mitochondria
Golgi bodies.
Peppered moths vary in color from light gray to almost black. The color of any moth depends on how many black spots are found on its wings. The name "peppered" refers to these black spots. During the day, the moths rest on trees. In England where the moths live, many light gray trees were covered with soot that came from the smokestacks of factories. The trees got darker and darker from the soot.
Over time, the peppered moth population in polluted areas
will become extinct.
will become darker in color.
will probably stay the same.
will become lighter in color.
A changing climate has strong implications for biodiversity. Studies of fossil and pollen distribution show that species are very sensitive to climate changes. When the climate changes, species often die out in their present areas and colonize new areas. Therefore, as the climate changes in the future, there will be disruption of natural communities and extinction of populations and species.
Which of these environmental changes would most affect the arctic polar bears survival?
drought
an ice age
deforestation
global warming
The boxes show parts of the body at different levels of organization.
P is at the highest level of organization.
Q is at the lowest level of organization.
R is at the highest level of organization.
S is at the lowest level of organization.
How does the asexual reproduction of a lily differ from sexual reproduction? All BUT ONE statement describes a difference between asexual and sexual reproduction of this lily, namely:
Asexual reproduction only requires one parent.
Asexual reproduction requires only that the male part is present.
Sexual reproduction requires both male and female flower parts.
Sexual reproduction requires an egg and pollen containing sperm.
Solar radiation travels through the earth's atmosphere and warms the planet's surface. Greenhouse gases like carbon dioxide in the earth's atmosphere reabsorb the heat and warm the planet. The amounts of greenhouse gases have been increasing over the past century, causing the earth's surface temperature to increase. This gradual temperature change is thought to have many negative environmental consequences.
Which of these might be a POSITIVE effect of the increase in carbon dioxide levels?
rise in sea levels
decrease in plant growth.
increase in plant growth.
increased melting of ice caps.
Human activities can alter an ecosystem and bring about the extinction of a species. Such activities include any of these except
hunting a species to extinction.
assuring a habitat remains unharmed.
introducing toxic compounds into the food webs.
introducing a new species into the environment.
A woman who has sickle cell anemia passes this disease on to her offspring. This means that the mutation for sickle cell anemia MUST occur in the woman’s
gametes.
blood cells.
somatic cells.
reproductive organs.
Consider this ecological pyramid found in the Great Lakes ecosystem. Ecological pyramids are diagrams that are used to show how much energy, the number of organisms, or how much biomass may be found at each trophic level of all the food webs of a community. Why are the autotrophs, in this case the algae, always placed at the base of the pyramid?
Autotrophs are always the most numerous in any ecosystem.
Autotrophs are the starting point of the carbon cycle in any ecosystem.
Autotrophs are responsible for converting solar energy into usable chemical energy.
Autotrophs work with saprophytes and detritivores to recycle energy into the food web.
Study the photosynthesis model above. What is a correct assumption about the inputs and outputs of photosynthesis
Without light energy from the sun, photosynthesis would still occur.
Oxygen is an input into photosynthesis; carbon dioxide is an output.
Carbon dioxide is the source of energy; oxygen is the chemical energy produced.
Sunlight is the source of energy; plant sugars are the chemical energy produced
Charles Darwin studied finches on the Galapagos Islands. While the finches on all the islands came from the same ancestors, the distance between the islands was too great to allow finches from different islands to interbreed. Over time, the size of the finches on the different islands remained the same, but the shape and size of their beaks changed, as shown here. This adaptation helped the finches find food on their particular island. The change in the size and shape of the finches’ beaks was MOST LIKELY caused by
geographic isolation.
a change in climate.
endangerment of the species.
a decrease in the mutation rate.
As lions hunt for food, they must not only be strong and quick, but they must also have the correct fur coloring in order to not be noticed by potential prey. Which mane color would be BEST suited for hunting in the grasslands during a period of drought, when most of the grasses were beginning to die?
black
brown
orange
white
roan
CHECK ALL THAT APPLY
Choose the descriptions that would fall under the word
HAPLOID.
N
2N
chromosome number in gametes
produce of meiosis
produced by fertilization
CHECK ALL THAT APPLY
Choose the descriptions that would fall under the word
DIPLOID.
N
2N
chromosome number in somatic cells
produce of meiosis
a zygote (fertilized egg)
CHECK ALL THAT APPLY
Choose the descriptions that would fall under the word
CELLULAR RESPIRATION.
chemical reaction
oxygen is reactant
oxygen is product
carried out by animals
carried out by plants
CHECK ALL THAT APPLY
Choose the descriptions that would fall under the word
PHOTOSYNTHESIS.
carbon dioxide is a reactant.
ATP is reactant
oxygen is product
carried out by animals
carried out by plants
Be thinking about natural selection.
Place the statements in order of how they occur in nature.
1. Some organisms do not survive while those that do survive are better suited to the environment.
2. Organisms produce more offspring than the environment can support.
3. Organisms that survive reproduce, sending their genes into the next generation.
4. There is increased competition for resources.
2-4-1-3
3-4-1-2
4-2-1-3
2-4-3-1
Based on the food web, correctly predict how changes in the number of a certain species affect the balance of the ecosystem. Choose each correct statement by clicking on the sentence. Choose all that apply.
If the number of snakes increased, the number of rabbits decreases.
If the number of hawks increased, the number of grasshoppers increases.
If the number of insect-eating birds decreased, the amount of grass increases.
If the number of hawks increased, the amount of grass increases.
If the number of rabbits increased, the number of insect-eating birds decreases.
If the grasshoppers in a certain area receive 500 million joules of chemical energy from the plants they eat in one day, what is a reasonable estimate of the amount of chemical energy the frogs in the same area will get from their food?
500 Joules
50 Joules
5 Joules
50000 Joules
0.5 Joules
A food chain of a rice field ecosystem is shown below.
rice plant → field rat → snake
How would the snake population of a rice field likely be affected in the year following a serious drought?
The mice population will get their water from the plants, so the mice and snake population will stay the same and the plants will decrease.
The snake population will get their water from the plants, so the mice and snake population will stay the same and the plants will decrease.
The plant population will decrease due to no water for chemical reactions, and the mice population will decrease and then the snake population will decrease.
The plant population will increase due to increase water for chemical reactions, and the mice population will decrease and then the snake population will decrease.
