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WorksheetsBiology EOC Quiz 3
Total questions: 24
Worksheet time: 36mins
The clear protein an egg white becomes opaque and firm when cooked because the heat
mutates the DNA
turns the protein into carbohydrates
stops the protein formation
changes the protein structure
Which list shows different levels or organization within a population ordered from least to most complex?
organ systems, organs, organelles, organisms
organelles, organs, organ systems, organisms
organisms, organ systems, organs, organelles
organs, organelles, organisms, organ systems
Western coral snakes have a striped color pattern and are poisonous. Arizona mountain kingsnakes look like western coral snakes but are not poisonous. The color pattern of the Arizona mountain kingsnake is an example of
camouflage
mimicry
mutualism
parasitism
Which statement about fossils could be used as evidence that evolution by natural selection has been in effect for millions of years?
Fossils found in higher layers of rock are older than those found in lower layers
Fossils found in lower layers of rock are more complex than those found in higher layers
Fossils of current species have been found throughout rock layers that are billion of years old
Fossils of species that no longer exist but are ancestors of current species have been found in rock layers
Which best illustrates natural selection?
An organism with favorable genetic variations will tend to survive and breed successfully
A population monopolizes all of the resources in its habitat, forcing other species to migrate
A community whose members work together utilizes all existing resources and migratory routes
The largest organisms in a species receive the only breeding opportunities
During the fall reproductive season, the belly of a male brook trout becomes bright orange. The orange belly provides some camou age and helps attract females. This trait evolved in brook trout because, compared to males with pale bellies, males with bright orange bellies are more likely to
live in good habitats
be eaten by predators
mate with other species of fish
fertilize eggs to produce offspring
A population is separated into two groups by a geographic barrier. Over time, enough di erences develop between the two groups that they do not interbreed when reunited. Which of the following terms best describes the process that has occurred?
extinction
hybridization
immigration
speciation
Skeletal structures are common between two animals of different species. These structures probably exist because both species
have a common food source
live in the same environment
have survived until the present time
are related to a common ancestor
Scientists can now use bacteria to produce some human hormones. These hormones can be used for medical treatments. Why are bacteria able to produce hormones that are identical to human hormones?
Because bacterial cells naturally express all the same proteins as humans
Because human genes can be inserted into and expressed by bacterial cells
Because humans genes that are normally dormant in bacteria can be activated
Because bacteria make copies of any human proteins that are injected into them
Which of the following events involves a consumer and producer in a food chain?
a cat eats a mouse
a deer eats a leaf
a hawk eats a mouse
a snake eats a rat
Lightning from a thunderstorm strikes a tree that falls to the forest floor and dies. During the next few years the dead tree undergoes many changes. What organisms are most likely responsible for the biological and chemical changes to the tree?
consumers
decomposers
predators
producers
The populations of wolves and other large predators have decreased throughout the United States. This disruption of the natural food web will most likely lead to
a decrease in prey animals
an increase in producers
the overpopulation of prey animals
the overpopulation of scavengers
Legumes, such as clover and alfalfa, have nodules on their roots that contain nitrogen- xing bacteria. These bacteria convert nitrogen gas from the atmosphere into nitrates. Which of the following best accounts for the presence of nitrogen- fixing bacteria in legume root nodules?
nitrates are a food source for earthworms
plants can use nitrates, but not nitrogen gas
nitrates are one of the reactants in photosynthesis
nitrogen gas is toxic to most plants, but nitrates are nontoxic
The table below shows the genotypes that result in four different blood types in humans. Based on the information in the table, which of the following describes alleles IA and IB?
The I A and I B alleles show sex linkage
The I A allele is recessive to the I B allele.
The I A allele is dominant to the I B allele.
The I A and I B alleles show codominance.
Which sequence of DNA bases would pair with the ones shown in the partial strand pictured?
A
B
C
D
The graph shows a population of pigeons living in a neighborhood over a ten-year period. Which of the following statements could account for the change in population seen between years 7 and 8?
The birth rate of the pigeons increased.
The emigration rate of the pigeons decreased.
The death rate of the pigeons exceeded the birth rate
The neighborhood reached its carrying capacity for the pigeon population.
Which of the following best describes the formation of a zygote?
A sperm cell nucleus and an egg cell nucleus fuse.
A cell's DNA replication and mitosis are accelerated.
A succession of cell divisions produces a solid mass of cells.
A cell with 46 chromosomes divides to form cells with 23 chromosomes each.
Which is the function of autotrophs in the carbon cycle?
to use oxygen to produce glucose
to take in excess water
to use carbon dioxide to produce glucose
to feed on herbivores
Which of these is not recycled through Earth's ecosystems?
water
energy
nitrogen
carbon
How do moose use a learned behavior to protect themselves?
They have hollow hair to keep them warm in the winter
The roll in a pool of muddy water to avoid fly bites
They have keen hearing to sense danger in the forest
They use their wide hooves to prevent sinking in deep snow
Salt concentration, water temperature, plankton, and the whale shark might all be used in a description of an ocean
climate
food web
ecosystem
population
The diagram shows part of the carbon cycle. If many trees are removed from a forest by logging, what is the most immediate effect on the carbon cycle in the forest?
increased rates of decomposition
decreased use of atmospheric carbon dioxide
decreased combustion of fossil fuels
increased production of organic compounds
Which model correctly shows energy flow in food chain?
A
B
C
D
The diagram shows an energy pyramid. Approximately how much energy is available to the secondary consumers in this pyramid?
10kcal/year
100 kcal/year
1,000kcal/year
5,000kcal/year
