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WorksheetsBio Final Review
Total questions: 42
Worksheet time: 21mins
Look at the food web below. If you removed one of the following organisms, which would cause the most instability in the ecosystem?
Fox
Deer
Owl
Rabbit
A new species of fish is introduced into a lake and this amount of this type of fish becomes very large. What are some environmental changes and ecosystem impacts that might be caused by this new fish?
This new fish will find a unique food source and therefore have no impact.
This fish will most likely compete with the native fish for food.
This fish will eventually replace a different species completely and the extra amount of food consumed overall will be negligible.
The new fish will find no food source and will die off without affecting the ecosystem.
The following illustrations show how the elements Nitrogen and Carbon cycle through the environment. Based on your observations and knowledge of matter moving within systems, what is the most important similarity between these two cycles?
Both demonstrate how matter is continuously used and reused by all members of an ecosystem
Both demonstrate that matter begins and ends with decomposers
Both demonstrate that the elements carbon and nitrogen can be found in the soil and the atmosphere
Both demonstrate how matter is changed through the process of photosynthesis
Which organisms in this food web can be described as a tertiary consumer?
Hawks
Weasels
Raccoons
Mice
Based on the food web, which of the following is most likely responsible for the rabbit population trend as shown in the graph?
decrease in fox population
decrease in amount of grass
increase in number of acorns
increase in squirrel population
A certain type of toad resembles tree bark with its brown color and rough skin. A certain type of frog, has a bright yellow-green color with red toes and smooth skin. How does the appearance of each organism most likely help them survive?
Both appearances act as camouflage.
Both appearances scare off predators.
The toad's appearance is to avoid detection, while the frog's appearance is to scare off predators.
The toad's appearance is to scare off predators, while the frog's appearance is to avoid detection.
Leaves of plants commonly found in a grassland biome grow up from horizontal underground stems rather than from vertical above ground stems. Why would this be an advantage?
The plant can rapidly grow new leaves after being eaten.
The plant can survive in soil that provides no nutrients.
The plant requires more moisture than other plants in the biome.
The plant needs less sunlight than other similar plants.
Tapeworms can infect humans when a human eats food containing tapeworm larva. Once inside a human, the tapeworm will feed off of the food that the human eats and causes the human pain. This situation is an example of –
parasitism
commensalism
mutualism
predation
The diagram illustrates the relationship of two species living in a grassland biome. What is the best explanation of the influence of Species A on Species B?
Species B is a predator of Species A.
Species A benefits from living in the same area as Species B.
Species A is unaffected by Species B.
Species B is a major food source of Species A.
The graph below shows the population of owls and mice in an ecosystem over a ten-year period.
Which of the following would be the best explanation for why the populations of mice and owls changed so much starting in 1987.
The forest that was studied started to experience deforestation. The loss of trees caused the owls to relocate, which led to the increase in the mice population.
The owl population doubled which led to a drop in the mice population.
There was an earthquake that killed many owls. The sudden drop of the owl population led to the increase in the mice population.
There was a tornado that came through the forest that forced the owls to relocate. The sudden drop of the owl population led to the increase in the mice population.
As the tree canopy in a rainforest thickens, how does this affect the organisms living in the ecosystem?
All organisms flourish, as does the tree canopy.
All organisms other than the trees suffer.
Plants on the rainforest floor receive less light.
Plants on the rainforest floor receive more light.
What role does the circulatory system play in the homeostasis process shared by these three systems?
dilation of blood vessels
sweat gland secretions
increase insulin release
increase of heartrate
Students were studying the role of decomposers in composting. A compost bin was set up and filled with sources of carbon and nitrogen, moist soil, and a starter solution containing microorganisms. The graph below shows the change in temperature of the bin after two weeks. What is the most probable cause for the increase in temperature?
The soil was heated to provide optimal growth conditions for the bacteria.
During decomposition, the bacteria gave off energy in the form of heat.
During decomposition, the bacteria gave off moisture which increased the temperature.
The soil chemistry was altered, which caused an increase in the temperature.
The diagram below shows a cross section of a leaf.
Which of the following is the function of the guard cells on the lower surface of the leaf?
synthesizing proteins
transporting water and minerals
opening and closing stomata
allowing light to enter the leaf
Which structures show that this cell is specialized for receiving information signals from many sources?
dendrites
myelinated sheath
central nucleus
Schwann cell
Which of the following is NOT a growth response of a plant?
response to light (phototropism)
response to gravity (gravitotropism)
response to touch (thigmotropism)
response to smell (odotropism)
Which of the following is true according to the diagram below?
Enzyme A has low activity over a broad range of temperatures.
Enzyme B has high activity over a broad range of temperatures.
Enzyme B has a specific temperature condition where it works best.
Enzyme B has no activity.
During which temperatures will this particular enzyme have the lowest rate of reaction?
10-15 degrees Celsius
25-30 degrees Celsius
40-45 degrees Celsius
50-55 degrees Celsius
According to the graph, how does temperature affect the sugar consumed by cellular respiration?
An increase in temperature will decrease the sugar consumed by cellular respiration
A decrease in temperature will increase the sugar consumed by cellular respiration
An increase in temperature will increase the sugar consumed during respiration
Temperature has no affect on the sugar consumed in cellular respiration
What monomer is represented by this diagram?
monosaccharide
nucleotide
glycerol
amino acid
Which organisms on the chart are the most closely related?
Rana clamitans and Rana catesbiana
Rana clamitans and Felis catus
Felis catus and Spermophilus tridecemlineatur
Rana catesbiana and Felis catus
Which of the four animals shown above is classified taxonomically as the least closely related to the others?
bat
deer
dolphin
hawk
Each region of this diagram represents a collection of organisms or members of a taxonomic level. Region D represents flying mammals. Region A represents birds. Which of the following is most likely the taxonomic level region C represents?
invertebrates
birds
mammals
vertebrates
A student was using a dichotomous key to classify the organisms above. The first set of characteristics is:
a. vertebrate
b. invertebrate
According to the first set of characteristics, which of these would be classified as a vertebrate?
spider
fly
frog
crab
A student was reading about the evolution of different species and was surprised to learn that the male peacock did not initially have the large, colorfully patterned tails that they do now. The tails are a result of the female of the species mating with the males that had the bigger and more colorful tails. This is an example of evolution by _______________.
mutation
natural selection
gene flow
non random mating
A population of the same species of a squirrel is geographically separated. Due to the variation in the conditions of their environments, the squirrels may become different over time. Their differences may eventually prohibit the separated squirrels from breeding with one another.
This is an example of –
reproductive isolation
genetic engineering
gene splicing
reproductive combination
Allopatric speciation occurs when interbreeding is no longer possible because of geographic isolation. Which is NOT an example of allopatric speciation?
Antelope squirrels separated by the Grand Canyon
Snapping shrimp in the Atlantic Ocean and in the Pacific Ocean, separated by the Isthmus of Panama
Birds living on each side of the Grand Canyon
Porkfish in the Atlantic Ocean and in the Pacific Ocean, separated by the Isthmus of Panama
Rabbits normally eat some grass as a food source. In a habitat, a new species of grass is introduced that out-competes most of the original species of grass. The new species of grass contains a chemical that is usually toxic and fatal to most rabbits. Assuming that all rabbits in this habitat will eat some of the new species of grass, how will the presence of the new grass most likely decrease the diversity of the rabbit population in this habitat?
Only rabbits that eat less grass will survive.
Only rabbits that eat more grass will survive.
Only rabbits that can find old grass to eat will survive.
Only rabbits that are resistant to the chemical will survive.
Horses today are much larger than those found in fossils. Some fossils of ancient horses show that early horses were the size of today's common house cat. What is a possible explanation for the change in the size of horses over time?
Each generation of horse became stronger and taller than the one before it.
The taller horses were selected as mating partners.
The change was a result of natural selection.
The size was a natural adaptation.
After examining the fossil record, scientists have determined that horses today are much larger than their extinct ancestors. For example, Hyracotherium Eohippus, a small horse species that lived 50-60 million years ago, was 60 cm long and 30-38 cm high at the shoulder.
Which of the following conclusions is supported by this information?
Horses living today have increased their numbers since they first appeared.
Horses in the fossil record are larger than their descendants.
Larger horses more readily survived their environment allowing their genetic information to be passed to the next generation.
Only fossils from smaller horses are found because only the smaller horses died.
A student is observing these diagrams of devealopmental stages. The top picture shows the developmental stages of a chiclken, the bottom of a human. The student is supposed to put them in order, but as he does this he notices that number 4 on the chicken and number 4 on the human both have tails. What does this tell us about humans and chickens?
they are not related at all
they share a common ancestor
humans are birds
birds are humans
Which process of cell division results in more diverse offspring?
Process 1 because there are more chromosomes in the daughter cells
Process 1 because there is only one round of division
Process two because the daughter cells are meant to combine with other organisms making a brand new, unique organism.
Process two because the final division results in more cells that could be used for reproduction.
How do the ABO blood group genes illustrate the definition of multiple alleles?
An individual may have more than two alleles at a time to fill multiple gene location slots for a trait.
An individual in a population will have only two of the three possible alleles, meaning there are six possible genotypes rather than three.
An individual in a population may have many possible alleles but only two of them can fill the slots for a trait’s gene location, resulting in three possible genotypes.
The ABO blood groups do not illustrate multiple alleles.
Use the table to answer the question below.
DNA Codes for Amino Acids
AminoAcids DNACodons
Ala CGA, CGG, CGC
Arg GCA, GCG, GCT
His GTA, GTG
Iso TAA, TAG, TAT
Leu AAT, AAC, GAA
Met (start codon) TAC
Thr TGA, TGG, TGT
Tyr ATA, ATG
Which of the following mutations would change the amino acid sequence of a protein?
CGA mutated to CGC
GCA mutated to GTA
AAT mutated to GAA
ATA mutated to ATG
Which process is identified by number 2 in the diagram?
replication
transcription
translation
transmutation
5’ CGCTAA 3’
Which of the following nucleotide base sequences complements the section of DNA modeled above?
5’ UTCGCA 3’
3’ AATCGC 5’
3’ GCGATT 5’
5’ TTUCGC 3’
A normal, healthy gene can become a cancer-causing oncogene if changed. Which of the following is NOT a way that a change will lead to excessive cell growth?
A mutation within the gene.
Multiple copies of the gene as a result of an error in DNA replication.
The gene is moved from its normal location in the cell's DNA to a new location that causes it to be transcribed more often than normal.
A mutation elsewhere in the cell's DNA.
The process illustrated in the diagram above is critical during embryonic development. Which of the following statements are false regarding this process?
I. All types of cells in a multicellular organism have the different DNA.
II. Differentiation of cells may occur due to a difference in gene expression.
III. Environmental factors such as temperature and light may have an influence on cell differentiation.
IV. Cell differentiation is influenced by how DNA is transcribed to RNA.
I
I, II & IV
II & IV
I, II, III, & IV
This is a model of the cell cycle. What is the name of the phase represented by the yellow arrow?
prophase
metaphase
anaphase
interphase
Which labeled viral structure in the diagram above attaches the virus to the host cell?
1
2
3
4
A few drops of Lugol's iodine solution placed in a beaker of water will turn the water red. A white starch solution was poured into a length of dialysis tubing and the ends were tied. The tubing was then dropped into the beaker of iodine solution. After 10 minutes, the white starch solution turned black, and the iodine water remained red. In the model, what is the tubing most likely representing?
nucleus
chloroplast
mitochondria
cell membrane
Which numbered cellular structure in the cell above shows that it is eukaryotic cell?
1
2
3
4
