WorksheetsBiology EOC Questions Practice 2
Total questions: 25
Worksheet time: 50mins
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The properties of water are the result of multiple factors including; polarity and hydrogen bonding. Which property of water is not a result of polarity.
Water dissolves salts and sugars.
Water will become less dense when frozen.
Water is transparent and lets sunlight pass through.
Water will from a spherical bead on the surface of a leaf.
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Large bodies of water can absorb and release huge amounts of energy with little fluctuation in temperature, contributing to their ability to moderate climate temperatures. How does heat capacity contribute to regulating global temperatures?
The high heat capacity of water regulates energy levels at the surface of the ocean, creating localized mixing with deeper water.
The high heat capacity of water prevents it from storing huge amounts of chemical potential energy in the form of ice at the polar caps.
The high heat capacity of water contributes to water’s ability to store energy, creating currents that transport this energy around the globe.
The high heat capacity of water reduces water’s ability to store energy, allow water from precipitation and runoff to easily migrate into ocean currents.
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Thyroxin enzyme is used to stimulate weight loss in people with an endocrine deficiency. High concentrations of thyroxin enzyme will have what affect on the metabolic reactions in the cell?
No effect on the reactions
Increase the rate of the reactions
Decrease the rate of the reactions
Cause the reactions to stop occurring
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The diagram below shows a molecular model of the structure of xylose.
Which is the primary function of xylose molecules?
Short term energy storage
Long term energy storage
Speed up chemical reactions
Store genetic information
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An experiment is carried out to determine how different pH values of soil will affect the growth of tomato plants. In this experiment, what is the dependent variable?
a. height of the tomato plants
b. specific variety of tomato plants used
c. pH of the soil
d. pH of enzymes in tomato leaf cells
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A single species of squirrel evolved over time into two species, each on opposite sides of the Grand Canyon. What can be concluded about the evolution of these two species of squirrels?
The two species diverged due to higher mutation rates on one side of the Grand Canyon.
The two species diverged due to low genetic diversity in the initial population.
The two species diverged due to the geographic isolation of the two groups.
The two species diverged due to differences in reproductive rates.
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Evolution is a change in the characteristics of a population from one generation to the next. One mechanism of evolution is natural selection. Which of the following natural selections condition examples can be classified as struggle to survive?
a. A family of pigs has a mutation that makes them immune to flu.
b. A family of dogs has a mutation that makes them immune to rabies.
c. Male rams charge at each other’s heads and fight to mate with a female.
d. Many species of fish lay millions of eggs at one time, only a little of those survive.
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The diagram below shows the distribution for two populations of a single species.
Genes are removed and added as individuals travel between the two populations. What mechanism of evolution do the arrows represent?
Gene flow
Genetic drift
Natural selection
Non-random mating
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Imagine that a mouse has white fur because of a mutation in its DNA. Which of the following conclusions can be drawn?
The white mouse increases the diversity of the species
The white mouse decreases the diversity of the species
The white mouse will have organs that do not function as well as those of other mice.
The white mouse is more likely to survive than others because it is less visible to predators.
The aye-aye lemur is a mammal that feeds mostly on insect larvae that live inside trees. The aye-aye lemur has a specialized middle finger that is long and thin. The aye-aye lemur moves along a tree branch and taps the branch with its specialized finger. When the aye-aye lemur hears a difference in the echo, it will tear open the bark with its teeth until the insect tunnel is exposed. The aye-aye lemur then uses its specialized finger to reach the insect larvae and remove it. Which selective pressure most likely resulted in the development of the aye-aye lemur’s special adaptation?
Limited availability of water
Competing for mates
Large numbers of natural predators
Food sources that are hard to find
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A new predator of rabbits has been introduced within an ecosystem. This new predator runs faster than the native predators of rabbits. Which statement describes what will most likely occur in the rabbit population due to the introduction of the predator?
The rabbits will mutate their genes and express genes that increase their speed.
Slower rabbits will develop stronger legs and pass this trait to their offspring.
Rabbits will mate and produce offspring with a different species that has faster runners.
Faster rabbits will survive and reproduce increasing the average speed of the rabbit population.
A population of rabbits in an area of Northern Florida was monitored to learn more about the biotic and abiotic factors that affect the population size. The graph below shows data collected about the rabbit population size for 30 generations.
Based on the data , what can be correctly stated about the rabbit population?
More rabbits have immigrated than have emigrated.
The number of deaths is greater than the number of births.
The rabbits appear to have met carrying capacity.
At the twentieth generation a lethal virus kills a majority of the rabbits.
The graph shows the number of taxa (different species) of reptiles whose fossilized tracks have been found.
Which statement is best supported by these data?
Competition for food and shelter among reptile species was very low during the Triassic period.
A great extinction occurred during the Jurassic period.
Environmental conditions for speciation were most favorable for reptiles during the Permian period.
Reptiles adapted to a terrestrial environment during the Cretaceous period.
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Base your answer on the diagram below and on your knowledge of biology.
Insects can get diseases just like other organisms. A deadly bacteria infected the insects on one Galapagos Island. Among the birds living there, which of the finches would be the most likely to experience a drastic decrease in population size ?
warbler finches
large ground finches
cactus finches
medium ground finches
Changes in a deer population are shown in the graph below.
Which statement best explains section X?
a. The population has reached the carrying capacity of its environment.
b. Energy is used for interbreeding between members of different species.
c. A predator recycles the remains of dead organisms.
d. Competition does not occur between members of different species in the same habitat.
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A model of a biological process is shown.
What is the purpose of this process?
To replicate the DNA of an organism before cell division
To assemble nucleotides in an mRNA chain along a DNA template
To synthesize amino acids used to unzip strands of DNA and copy the genetic code
To translate the genetic code into a specific sequence of amino acids
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A student builds a model of a DNA strand.
Which of these models of a DNA strand shows bases that are complementary to the ones on the student’s DNA model?
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A biology teacher gives each pair of students in her class a group of 30 newly sprouted bean plants. She tells the class to design and carry out an experiment with these plants. After one month, the students compile the data shown below.
Based on this experiment, what can the students infer?
Group 1 plants received 12 hours of light per day.
Group 1 plants grew taller than the plants in Group 3.
Group 1 plants had more leaves than Group 2, 3, 4, or 5 plants.
Group 1 and Group 5 plants show that light impacts plant growth
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All living things are classified into kingdoms based on specific characteristics. Which of the following are only characteristic to the fungi kingdom?
a. heterotrophic, eukaryotic cells, cell wall present
b. heterotrophic, eukaryotic cells, no cell wall present
c. heterotrophic, prokaryotic cells, cell wall present
d. heterotrophic, prokaryotic cells, no cell wall present
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All living things are classified into kingdoms based on specific characteristics. Which of the following are only characteristic to the Bacteria domain?
a. eukaryotic cell, cell wall present
b. eukaryotic cell, no cell wall present
c. prokaryotic cell, cell wall present
d. prokaryotic cell, no cell wall present
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The classifications of four trees are shown in the table.
Which two trees are the most closely related?
Taiwan beech and Taiwan catkin yew
Taiwan catkin yew and lodgepole pine
Lodgepole pine and Japanese maple
Japanese maple and Taiwan beech
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Sailors in the past may have heard the greeting from a passing ship, “Avast ye scurvy dogs.” This greeting would be a reference to a disease known as scurvy, which is due to inadequate intake of vitamin C. Which row in the chart below correctly identifies the cause of this disease and a possible treatment for it?
1
2
3
4
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Some bacteria can be pathogenic while others can be beneficial to humans and not cause disease. The use of antibiotics and public education about handwashing and covering your coughing and sneezing have helped to control bacterial infections. For infections that can be fatal, what effect have these practices had on the death rate in the last century?
death rates have decreased
death rates have increased
death rates have remained the same
death rates have increased and then decreased
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Some farmers currently grow genetically engineered crops. What is an argument against the use of this technology?
It increases crop production.
It produces insect-resistant plants.
It often results in crops that do not taste good.
Its long term effects on humans are still being investigated.
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The production of new types of food crops will help raise the quality of food grown by farmers. Research papers released by the National Academy of Sciences announced the development of two new superior varieties of rice, one produced by selective breeding and the other by biotechnology.
One variety of rice, called Nerica (New Rice for Africa), is already helping famers in Africa. Nerica combines the hardiness and weed resistance of rare African rice varieties with the productivity and faster maturity of common Asian varieties.
Another variety, called Stress-Tolerant Rice, was produced by inserting a pair of bacterial genes into rice plants for the production of treholase (a sugar). Trehalose helps plants maintain healthy cell membranes, proteins and enzymes during environmental stress. The resulting plants survive drought, low temperatures, salty soils, and other stresses better than the standard rice varieties.
Why is the production of new varieties of food crops necessary?
Technology for producing fresh water for agriculture has improved.
Burning fossil fuels has decreased agricultural areas.
Essential food crops are becoming extinct.
World population continues to increase.
