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WorksheetsBiology PreTest
Total questions: 42
Worksheet time: 22mins
Using the following information, which of the conclusions can be reasonably inferred from the table? (1.1) Quantity of nucleotides in DNA Source | Adenine | Thymine | Guanine | Cytosine E. coli | 26.0 | 23.9 | 24.9 | 25.2 Yeast | 31.3 | 32.9 | 18.7 | 17.1 Moth | 22.6 | 22.2 | 27.5 | 27.8 Rat | 28.6 | 28.4 | 21.4 | 21.5 Human | 30.9 | 29.4 | 19.9 | 19.8
the nitrogen bases guanine and cytosine bond with each other
The more adenine and thymine the more complex the organism
the amount of adenine is always greater than the amount of guanine
the moth is an evolutionary descendant of the rat
variation in base ratios causes adaptation to occur slowly
What is the correct order for how living things function?
DNA > Protein > RNA > Trait
RNA > DNA > Protein > Trait
Protein > Trait > RNA > DNA
RNA > DNA > Trait > Protein
DNA > RNA > Protein > Trait
Organs (i.e., heart, stomach, flower) have an easily recognizable shape. The structure it has is related to:
how it obtains energy
the function it performs
the overall size of the organism
its method of reproduction
whether or not it can move
Which of the following is NOT considered an organ of a human organism?
kidneys
skin
femur bone
cardiac muscle
eye
The cell processes (i.e., osmosis, diffusion, active transport) transport materials in and out of cells, enabling a cell to maintain:
symbiosis
mitosis
photosynthesis
evolution
homeostasis
Refer to the following diagram. The X’s represent solutes (molecules) dissolved in the water. What direction will the net movement of water occur?
A → B
B → A
equal in both directions
not enough information to know
it depends on water temperature
Which of the following is a significant difference between mitosis and meiosis?
mitosis produces 4 daughter cells and meiosis produces 2 daughter cells
mitosis has 1 division and meiosis has 2 divisions
mitosis ends with the haploid # and meiosis ends with the diploid #
mitosis produces sex cells and meiosis produces only body cells
mitosis occurs in both plant and animals, meiosis is only in plants
Which of the following properties describe why water is such an important and unique molecule?
polarity
adhesion
cohesion
universal solvent
all of the above
Cellular respiration is responsible for producing ATP from the metabolism of glucose in order to provide the energy needs of a cell. This takes place in the:
mitochondria
chromosomes
chloroplasts
nucleus
ribosomes
During cellular respiration the chemical energy found in the carbohydrate C6H12O6 is released in the presence of oxygen and the energy is transferred to a molecule called ATP. During that process the carbon, hydrogen and oxygen are released as what molecules?
glucose and carbon dioxide
carbon dioxide and water
oxygen and water
nitrogen gas and methane
glucose and oxygen
Part of the tundra food web is shown at the right. Which of the following describes the relationship between the sedge and Arctic Hare?
competition.
host-parasite.
mutualism.
producer – consumer
commensalism
Cells divide from existing cells through a process called:
photosynthesis
cellular respiration
osmosis
fertilization
mitosis
Which of the following molecules are the waste products of respiration but the beginning products for photosynthesis?
CO2 and H2O
O2 and H2O
O2 and C6H12O6
CO2 and C6H12O6
ATP and DNA
What does the graph to the right show about the relationship between rate of photosynthesis and carbon dioxide concentration?
There is a point where more CO2 doesn't make a difference
Photosynthesis rate stays the same regardless of CO2
CO2 concentration doesn't affect photosynthesis
Photosynthesis will increase as long as CO2 increases
CO2 concentration causes less oxygen to accumulate
Praying Mantis is a predatory insect that often eats moths. The graph below shows the relative numbers of two species of moths over 12 weeks after the introduction of the predatory praying mantis. What characteristic of the ecosystem is best indicated from the graph?
Species B was preferred as food over species A.
Species B may replace species A in this environment.
Species B will reproduce more rapidly than species A.
Species B was more abundant at the beginning of this time period than species A.
Species B began to feed on species A.
Given an Acacia tree in a forest, which of the following is an example of an abiotic factor affecting it?
a caterpillar eating its leaves
wind blowing through its branches
a bird nesting in its branches
fungus growing on its roots
bacteria decomposing its fallen leaves
Ecosystems have carrying capacities, which are limits to the numbers of organisms and populations they can support. The limiting factor for a rabbit population may be:
availability of food
availability of water
diseases
predators
all of the above
In southeastern Idaho many different organisms live in the same area, playing different roles as producers, and consumers. Following is a list of organisms in a food chain. The flow of energy from one organism to the next is shown with an arrow. What position best represents the snake’s position in the food chain?
Put them in order from top of food chain to bottom.
Red tailed Hawk
snake
field mouse
grasshopper
dandelion
In a food chain, how does matter differ from energy?
energy can't be changed
energy can be cycled
matter can be changed
matter can be cycled
they do not differ, they are both cycled
The way in which carbon is used and reused through the ecosystem is called:
energy recycling
the carbon dioxide pyramid
the carbon cycle
the biotic/abiotic progression
carbon footprint rotation
In the diagram, extreme hunting for their fur reduces the sea otter population. What would happen next?
nothing, the ecosystem would stay the same
the sea urchin population would increase
the kelp population would increase
the shark whale population would increase
the small fish population would decrease
A volcano in the Hawaiian Islands erupts and covers the surface of the island with lava that cools and hardens. What happens next?
nothing, it stays covered with lava forever
plants immediately start to grow
environmental conditions break the lava down into soil over time
within 5 years, it will look like it did pre-eruption
it will never be the same, it will be a completely different ecosystem
If you removed the hawks from the food web it would eventually affect:
all of the organisms
rabbits, mice, coyotes
snakes and lizards
grasshoppers and mice
only the decomposers
If lizards were suddenly removed from this food web, what effect would it have on green grasses?
no effect because they do not eat grass
an increase in grasses because there would be less grasshoppers
a decrease in grasses because there would be more grasshoppers
an increase in grasses decomposers don’t affect grasses
a decrease in grasses because there would be more mice and rabbits
Bees, ants, wolves, elephants, lions, and meerkats often live in groups. Which of the following would NOT be a reason for these organisms to live together in a group?
greater chance of survival
they can share the workload
they have more eyes to watch for predators
helps them find and hunt prey more effectively
it decreases loneliness and sadness
Fish are one of many animals who form groups for survival. They will form "bait balls" with hundreds (even thousands) of fish to scare away predators and make it more difficult for predators to catch them. Why would it be better for a fish to join the "bait ball" rather than swim alone?
fish prefer to be in groups because it prevents anxiety and depression
a fish can swim faster and longer in a group compared to being on their own
a single fish would stand out and be easier to catch than a fish mixed with thousands of others
there is no reason for a fish to join a "bait ball" instead of swimming alone
reproduction is much easier because each fish is closer to each other
What is the correct level of organization found in cells?
Cell > Gene > Chromosome > Nucleus > DNA
Cell > Chromosome > Nucleus > Gene > DNA
Cell > DNA > Nucleus > Gene > Chromosome
Cell > Nucleus > Chromosome > DNA > Gene
Cell > Gene > Nucleus > Chromosome > DNA
DNA is found in:
the cell’s nucleus
the cell’s cytoplasm
only in sex cells
all cells except sex cells
on the cell membrane surface
A normal human cell has 46 chromosomes. After a cell undergoes meiosis, how many chromosomes will the resulting sex cells have?
23
46
23 pair
trisomy
2n
Genetic mutation:
introduces new traits into a population
causes changes in the DNA as it passes through time
may have such a slight effect that it goes unnoticed
is a source of new genes
all of the above
Mary has natural blonde hair. Both of her parents have natural brown hair. In humans, brown is dominant and blonde is recessive. Choose the genotype that best describes Mary’s parents.
BB and BB
BB and Bb
Bb and Bb
BB and bb
BrBr and BlBl
In pea plants, the genes for seed color and seed shape are on different chromosomes. Which of Mendel’s laws explains why the genes for these traits are not inherited together?
natural selection
selective breeding
independent assortment
segregation
spontaneous generation
Use the following chart to answer the question below: The two animals showing the greatest structural similarities are:
animals 1 and 4
animals 3 and 1
animals 2 and 3
animals 4 and 3
animals 2 and 5
In Hawaii, a bird called the Honeycreeper started as a species of bird that fed on nectar. Today there are 23 species of Honeycreeper. Which pattern of evolution does this example fit?
divergent evolution
convergent evolution
coevolution
tropical evolution
punctuated equilibrium
Natural selection is based on all of the following EXCEPT:
variation exists within populations
the fittest individuals leave the most offspring
the differential reproductive success within populations
individuals must adapt to their environment
individuals will reproduce more offspring than will survive
Which of the following would illustrate natural selection, explaining the large eyes of an owl?
owls hunt at night—their eyes grow larger with use and are passed on to offspring
a large eye surface causes better aerodynamics for flying—especially at night
large eye size was an advantage to survival and inherited by offspring
owls don’t like daylight, so they had to develop a way to see better at night
large eyes are very attractive to the opposite gender owl, increasing reproduction
Inherited traits that enable organisms to survive and reproduce are called:
lethal mutations
adaptations
surviving genes
acquired characteristics
genetic recombination
100 red and 100 white beetles are released in cage #1 that has red clay, and the same kind and number of beetles are released in cage #2 that has white sand. The cages contain insect-eating birds. Beetles are recaptured and counted after 10 days. What is expected?
equal numbers of red and white beetles survive in each cage
more red beetles survive in both cages
more white beetles survive in both cages
more red beetles survive in cage #1 and more white beetles survive in cage #2
more red beetles survive in cage #2 and more white beetles survive in cage #1
Two closely related species of squirrels live on opposite sides of the Grand Canyon. The ancestral species probably evolved into two species because of:
structural isolation
punctuated isolation
behavioral isolation
geographic isolation
climate isolation
The wing of a bat, the bones in the leg of a horse, and the flipper of a whale have a very similar pattern of bone structure, this is an example of:
analogous structures
mutated structures
homologous structures
convergent structures
vestigial structures
Many species of animals are indigenous (native) to caves. Which of the following would be most likely to become vestigial in these organisms?
tails
ears
teeth
legs
eyes
The rate of changes to the environment such as drought, flood, fire, deforestation, overfishing, application of fertilizers and pesticides can affect the population of a given species because:
members cannot adjust to change that is too fast or drastic
extinction always happens quickly
a threatened or endangered species will always go extinct
adaptation only occurs in very mild environments
evolution is really not affected by what is going on in the environment
