Font size
WorksheetsReleased SOL
Total questions: 50
Worksheet time: 50mins
A teacher in a biology laboratory is using a chemical to dissolve an eggshell. Which picture shows the safest laboratory practice?
A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Which are constants?
amount of water
temperature of sugar
temperature of water
amount of sugar dissolved
Red flower color is dominant to white flower color in rose plants. What is the expected result of a cross between two heterozygous rose plants?
100% red
75% red, 25% white
50% red, 50% white
25% red, 75% white
Place the phases of mitosis in the correct sequence.
ADECB
CEABD
BCEDA
BCDAE
To classify an organism a scientist finds in the field, which of these will the scientist first compare to other known organisms?
Dietary habits
Ecological niche
Physical structure
Reproductive method
For the growth curve to continue increasing, which of these must occur?
The organisms must adapt to a new habitat.
The organisms must migrate to a new environment.
The resources in the environment must be unlimited.
The environment must provide a habitat for a large variety of organisms.
What did Rosalind Franklin contribute to the understanding of DNA molecules?
An image indicating the shape of the DNA molecule
An analysis of the chemical makeup of a DNA molecule
A thought that DNA carries genetic information
A theory about how DNA conveys genetic information
Which organelle could the bladder best be compared to?
cell wall
vacuole
ribosome
mitochondria
Darwin's explanation for evolution was dependent on which scientific concept.
The ability of organisms to learn
The significance of social behaviors to survival
The existence of variation in a population
The relationship between size and survival
Which best helps scientists determine the age of fossils?
Physical traits
Genetic makeup
Reproductive strategy
Radioactive isotopes
A student is investigating the effect of plants on indoor air quality and states, "If plants are added to an indoor environment, the air quality will improve." This statement is an example of -
a theory
a procedure
an observation
a hypothesis
Although controversial at first, the germ theory of disease proposed that microorganisms were the cause of many diseases. Which of these was a result of the general acceptance that microorganisms cause disease?
The development and use of antibiotics
The belief in spontaneous generation
The link between viruses and RNA
The proof of a supernatural cause for illnesses
A biologist gathered data to show the interaction of the golden-cheeked warbler and juniper tree populations. Which conclusion did the biologist most likely make from the data shown?
As the juniper tree population increases, the golden-cheeked warbler population increases.
The ideal habitat for the golden-cheeked warbler population is 100 juniper trees per acre.
The golden-cheeked warbler population stabilizes when the juniper tree population increases above 120 trees per acre.
A golden-cheeked warbler population is unable is unable to survive if juniper trees are present
Studying the differences between fossils and normal organisms helps scientists better understand the -
role of mutation in life functions
primary function of key macromolecules
adaptation of organisms through acquired traits
evolution of organisms over time
This chart shows observations made of an unknown organism. Based on this information, the organism most likely belongs to the kingdom -
Fungi
Plantae
Eubacteria
Animalia
What can be concluded from this graph?
The reactants have less energy than the products.
The enzyme is consumed during the course of the reaction.
The enzyme lowers the energy of activation for the reaction.
The amount of free energy produced in the reaction increases with an enzyme.
Which statement is an inference based on this information?
Plant seeds have different shapes.
Milkweed seeds are dispersed by wind.
Maple seeds have a membrane-like extension.
Burdock seeds have short, peg-like extensions.
The weakness of hydrogen bonds between the bases of DNA allows -
rearrangement of the sequence of bases to take place
base pairs to separate during transcription and replication
new bases to be incorporated into the DNA molecule
conversion of bases to amino acids in the event of cell starvation
Which of these would most likely result in a change to the current classification of an organism?
Discovering organisms with similar physical traits in the fossil record
Finding a related organism that was previously considered extinct
Linking the organism to different ancestors though DNA sequencing
Observing organisms that occupy the same ecological niche
Which of the following are heterotrophs?
Fern
Yeast
Grass
Paramecium
Five species of frogs that live in separate habitats within 5 non-overlapping ranges along the Mississippi River share a common ancestor. Which process is most likely responsible for the formation of these five distinct species?
Physiological isolation
Geographic isolation
Behavioral isolation
Reproductive isolation
The diagram shown represents the input and output of a process performed by the chloroplast of a cell. Which substance is most likely represented by Y?
Glucose
CO2
ATP
Light
Which statement best describes her hypothesis?
A student notices fewer robins in her yard during the winter.
She thinks that some robins must migrate in the winter.
She counts the robins in her yard once a week for 2 years.
Her research has shown that some robins are not in her yard during winter.
Seaweeds occupy an important niche in the Chesapeake Bay ecosystem. Which question will best help a student identify the role of seaweeds in this ecosystem?
Which organisms depend on seaweeds as an energy source?
Which seaweed species produces the greatest amount of oxygen?
What wavelengths of light are photosynthesized by seaweed species?
What is the salinity in areas where seaweed is growing?
In 1950, Erwin Chargaff discovered that the percentage of adenine in DNA equals the percentage of thymine, and the percentage of cytosine equals the percentage of guanine. this proved invaluable to the eventual discovery of which aspect of DNA?
Location
Solubility
Structure
Volume
The study of embryos and other early stages of development can help in the classification of living things, past and present, by providing clues about the -
prokaryotic species that are at risk for extinction
rate of appearances of new terrestrial organisms
barriers to mating among marine populations
common ancestry among vertebrate species
nonpolar, positive, hydrogen, negative, oxygen
nonpolar, negative, oxygen, positive, hydrogen
polar, negative, hydrogen, positive, oxygen
polar, positive, hydrogen, negative, oxygen
Which characteristic do most adult fungi and plants share?
They both are producers.
They both have cells with cell walls.
They both reproduce through binary fission.
They both have multiple nuclei in each cell.
Students use a dissolved oxygen probe during a laboratory activity involving 1,000 mL samples of pond water. The function of the probe is to -
create a model
test a hypothesis
gather accurate data
analyze investigation conditions
In a population of 120 oak trees, 25% of the population has oak wilt disease. What is the number of trees in this population that have oak wilt?
(a) trees with oak wilt
An insect called the hemlock woolly adelgid was introduced to a Virginia forest ecosystem. This pest feeds on the nutrients stored inside a hemlock tree, resulting in the death of the tree. Which kind of data would best help a student evaluate the effect of this insect?
A comparison of the adelgid with native pest species
An account of how the adelgid was introduced into Virginia ecosystems
A list of the foreign ecosystems infiltrated by the hemlock woolly adelgid
Information about the ecosystem's characteristics before the adelgid infestation
A student wanted to compare the transpiration rates of two different plant species at varying elvels of humidity. The results are recorded in the table shown. Each plant group was given the same amount of water and light throughout the investigation. Which procedure shoudl have been performed to prevent error in this investigation?
One type of plant should have been tested.
Fewer plants should have been included in each group.
The percentage of humidity should have been kept constant.
Both groups should have been tested in the same soil type at each humidity level.
In an ecosystem, a sudden decrease in the number of bacteria in the soil would most likely result in -
increased water pollution in the soil
increased precipitation and flooding of the soil
a reduction in the amount of nitrogen available to the ecosystem
a decease in the number of fossils formed in the soil
Medicines are being produced using recombinant DNA technology. For veterinarians, the use of this DNA technology will result in -
decreasing the number of antibodies produced by pets
altering the chromosomes of healthy pets
making more treatments available for pets
identifying new diseases spread by pets.
The arrow in the diagram represents the movement of which molecular structure?
DNA molecule
mRNA molecule
Base pair
Protein
According to the classification key, what is the genus and species of this organism?
Papilio polyxenes
Malacosoma americanum
Papilio palamedes
Eurytides marcellus
The jackrabbit is a desert mammal. The jackrabbit's circulatory system increases blood flow to the ears during hot days. The blood flow to the ears decreases during cool or cold nights. This circulation pattern is most directly related to -
detoxification
excretion
osmosis
homeostasis
Proteins are among the most diverse group of macromolecules because of the -
different amino acids that can be connected in many sequences
different types of bonds linking amino acids together
energy phosphate groups that the amino acids contain
link between each DNA base and an amino acid in a protein
Which is an activity that increases the genetic variation within a population of earthworms?
Binary fission
Sexual reproduction
Budding
Fragmentation
The structural differences between a tadpole and an adult frog and due to the -
availability of food sources at different stages
type of DNA present at each developmental stage
combination of genetic material inherited during fertilization
different sets of genes expressed at each stage of development
gravity increased the downward flow of the trapped water
metabolism of the elodea plants absorbed CO2 from the water
heat from the light source caused the escape of dissolved gas
light caused the elodea plants to photosynthesize, releasing O2 gas
This table was found in a journal of student research. Which of these is the independent variable?
water volume
starch solution volume
amylase volume
incubation temperature
fractional activity
This table was found in a journal of student research. What is the dependent variable in these experimental data?
water volume
starch solution volume
amylase volume
incubation temperature
fractional activity
This table was found in a journal of student research. What are the constants in these experimental data? (select all constants)
water volume
starch solution volume
amylase volume
incubation temperature
fractional activity
Scientists classifying modern animals are most likely to compare the -
structure of the animals' ATP
function of the animals' limbs
composition of the animals' bones
sequence of the animals' DNA
Which feature do viruses have in common with animal cells?
Ability to form proteins at the ribosomes
Existence of lipids in cell membranes
Presence of a genetic code in nucleic acid
Production of energy by a mitochondrion
According to this diagram, the result of spermatogenesis is four sperm cells, each with -
strands of DNA that resulted from crossing over
half of the original number of chromosomes
genetically identical strands of DNA
complete copies of all the original chromosomes
A group of ponies lives in the Chincoteague National Wildlife Reserve in Virginia. The development of longer legs over time would be selected for if -
it increased the survival rate of the long-legged ponies
it decreased the rate of reproduction of the long-legged ponies
it prohibited the long-legged ponies form using available food sources
it made the long-legged ponies run more slowly
One parent is heterozygous for a certain trait (Dd). The other parent is homozygous dominant (DD) for that trait. What is the percent chance that an offspring from this cross will be heterozygous?
0%
25%
50%
100%
Which trial in the table of data shown has questionable data?
W
X
Y
Z
