Pre-Final Questions Missed 60% or lower.
Which of these is a segment of DNA that contains the information necessary to produce a protein?
A) a base
B) a gene
C) a codon
D) a chromosome
________________ are reactants in the process of cell respiration.
A) Water and sugar
B) Sugar and oxygen
C) Water and oxygen
D) Water and carbon dioxide
There are many different types of dog breeds, despite the fact that they are all one species, Canis
familiaris and all have a common ancestor, the wolf, Canis lupus. Many breeds, such as the Alaskan
malamute and the Siberian husky look remarkably like wolves and even retain some of their habits.
Other breeds like the daschund above, do not strongly resemble wolves. What part of the theory of
evolution by natural selection would explain why there are no wild wolves that resemble daschunds?
A) Natural selection leads to evolution.
B) There is genetic variation in all living species.
C) There is over-reproduction in all living species to ensure their survival.
D) There is competition for resources and those with favorable traits survive at higher rates.
__________ species reproduce rapidly in a new habitat due to the lack of parasites and predators that
would naturally control their population growth.
A) Invasive
B) Isolated
C) Native
D) Reproductive
A forest ecosystem can support a limited number of bears. This is because
A) bears hibernate during the winter.
B) the base of the food chain is seasonal.
C) available energy is lost from one trophic level to the next.
D) light that supports photosynthesis is limited during certain times of the
year.
A student is studying mitosis, in which a cell divides to form two cells. Which
of these shows the CORRECT mathematical model for the process if Nold
Pre-Final Questions Missed 60% or lower.
shows the number of chromosomes in the parent cell and Nnew shows the number of chromosomes in
the daughter cells?
A) Nnew = Nold
B) Nnew = Nold/2
C) Nnew = 2 × Nold
D) Nnew = 4 × Nold
Farmer Jones has a herd of cows. Brown coat is dominant over white coat in cows and his cows are all
brown. Farmer Jones likes brown cows and wants to keep his herd brown by selling off any
heterozygous cows. Heterozygous cows are brown but have the recessive gene for white coat.Suppose
Farmer Jones wants to do a test cross of his cows to see what type of genotypes are carried for coat
color throughout his herd. What is the genotype of the control bulls he should use to test for the
heterozygous genotype?
A) homozygous dominant
B) homozygous recessive
C) heterozygous dominant
D) heterozygous recessive
Meiosis is different from the process shown
because, during meiosis,
A) chromosomes are not replicated
B) two gametes are made for every original
cell.
C) four gametes are produced for every
original cell.
D) four somatic cells are produced for every original cell.
Pre-Final Questions Missed 60% or lower.
In nature, most plants reproduce using
pollen containing sperm to fertilize eggs.
Scientists produce many plants in the lab by
cloning; culturing a few plant cells in a test
tube of chemical medium. Few cells grow
into a new plant. It is easy for scientists to
produce many plants from just a few cells.
Where would you add "cloning" to the Venn
diagram?
A) Meiosis
B) Mitosis
C) Center - both mitosis and meiosis
D) Neither - Outside of both circles
Which is the BEST explanation for how fluid pressure from freshwater helps plants to stand upright?
A) Freshwater is a hypertonic solution, which causes the plant cells to swell with turgor pressure.
B) Freshwater is a hypotonic solution, which causes the plant cells to swell because of plasmolysis.
C) Freshwater is a hypertonic solution, which causes the plant cells to swell because of plasmolysis.
D) Freshwater is a hypotonic solution, which causes the plant cells to swell because of turgor pressure.
Mr. Jones has blood type B and Mrs. Jones has blood type AB. What is the probability that they will have
a child with blood type A if both of Mr. Jones’s parents were AB?
A) 0%.
B) 25%.
C) 50%.
D) 100%.
Pre-Final Questions Missed 60% or lower.
A mature wolf weighs an average of about 70 pounds. On a certain island in the Great Lakes, wolves
primary prey is moose. A mature moose weighs an average of about 700 pounds. Suppose that there is a
population of 50 moose on the island. How many wolves can be supported?
A) 5
B) 50
C) 500
D) 3500
The graph shows the tolerance range of
some common freshwater organisms to
different pH ranges in water. Suppose a
coal-burning power plant in Cowtown
begins to produce acid rain that falls on
Lake Bully. Which ecological impact is
LEAST likely if the water of Lake Bully falls
to a pH of 5.0.
A) Insects will over-populate, because
frogs will disappear from Lake Bully.
B) Crayfish will disappear from Lake
Bully and the fish will have less to eat.
C) Perch will overpopulate, because bass, their main predators, cannot survive at a pH of 5.0.
D) Clams will disappear from Lake Bully and the water will become murky, since it is not being filtered.
Substances that enter the cell without the expense of cellular ATP, but are too large to directly pass
through the membrane, use ________________________ in order to gain access to the inside of the
cell.
A) vesicles
B) osmosis
C) pseudopodia
D) membrane proteins
Pre-Final Questions Missed 60% or lower.
Farmer Fran sprays her sugarcane field with a highly effective pesticide called 'Bayou Bug Blast'. For five
years the pesticide works without a hitch, effectively killing almost all of the bayou weevils trying to eat
Farmer Fran's crop. However, during the 6th year, some of the crop takes a hit. During the 7th year, she
loses half of her crop, and during the 8th year, she loses almost the entire cane field to bayou weevils,
despite using twice the usual dose of Bayou Bug Blast. What happened?
A) The sugar cane became used to the pesticide, rendering it ineffective.
B) Bayou weevils over-populated, because Bayou Bug Blast killed all of the predatory insects.
C) A small population of weevils survived on other food sources and returned to the sugar cane field to
feed.
D) The weaker weevils were killed, and Farmer Fran accidentally caused only pesticide-resistant
beetles to survive.
Which example represents a DISADVANTAGE of asexual reproduction?
A) Genetic variety slowly causes hundreds of species of beetles to form from a single species.
B) A single antibiotic is able to quickly and easily kill millions of genetically identical bacteria.
C) Millions of bacteria are quickly produced by cell division, in one afternoon in a jug of milk that has
been left on the counter.
D) Male anglerfish must live on larger females as parasitic mates, since they encounter other anglerfish
so infrequently in the deep ocean.
The figure shows a classic experiment that demonstrates the principle
of osmosis. The left side of the U-tube is filled half-way with 10% red
sugar water. Into the tube on the right, distilled water is poured until it
is even with the red sugar water. A semi-permeable membrane is
placed in the brown area. Predict what will happen in the U-tube after
several hours.
A) The membrane in the middle will melt away and both sides will mix.
B) Both sides will become 5% red sugar water, and will be at equal
marks on the U-tube given enough time.
C) The left side of the tube will remain red, but rise in volume, as the
right side of the tube falls in volume. The distilled water will dilute the
sugar water.
D) The left side will remain red, but it will fall. The right side will
remain clear, but it will rise, as water moves from the 10% sugar water
to the distilled water.
Clownfish have evolved resistance to the deadly stings of sea
anemones. The sea anemone provides protection for the clownfish
from predators and leaves the uneaten remains of its prey for the
clownfish to finish off. Meanwhile the clownfish helps attract prey to
Pre-Final Questions Missed 60% or lower.
the sea anemone with its bright colors. The relationship between clownfish and sea anemones is a
form of symbiosis called
A) mutualism.
B) predation.
C) competition.
D) commensalism.
The graph represents what has happened over an 8 year period, when non-native Nile perch were
introduced to Lake Malawi in Africa. Based on the data, which of the following statements is true?
A) The Nile perch is competitively excluding the pike cichlid.
B) The Nile perch and Pike cichlid probably do not compete for food.
C) There is probably commensalism between the Nile perch and the pike cichlid.
D) The Nile perch and Pike cichlid probably occupy different ecological niches.
Gases such as oxygen and carbon dioxide cross the plasma membrane by
A) special gas transport proteins.
B) osmosis through the lipid bilayer.
C) active transport through protein channels.
D) passive diffusion through the lipid bilayer.