Practice EOC Biology Assessment Exam
With 100% Correct Answers
1. Which change in DNA will cause a heritable germline mutation? - correct answers ✔✔C. A DNA
replication error occurs in a sperm-producing cell
2. A student is investigating how substrate concentration affects the rate of an enzyme- catalyzed
reaction. Which three variables should be kept constant in the setup of the student's investigation? -
correct answers ✔✔M. Temperature of the reaction
P. Amount of enzyme
T. pH of the reaction
Tupai is part of the Leeward Islands. For years, people were not allowed on this island. Recently, it has
been opened to tourists. How will increased development and human interactions likely affects
succession on this island? - correct answers ✔✔C. Biodiversity will decrease as the number os species
decreases.
4. A cell model is shown. Students were instructed to review the types and number of structures that are
present in this cell model. - correct answers ✔✔M. Human stem cell
S. Sea Urchin Embryo Cell
T. Mammalian white blood cell
5. Which claim about reproduction in dogs can best be supported using a valid argument? - correct
answers ✔✔B. Gametes from both dogs are needed to maintain the correct number of chromosomes in
the offspring.
6. Which change would lead to higher carbon dioxide levels in the atmosphere? - correct answers ✔✔R.
An increase in the burning of fossil fuels
, 7. Which statement best explains how the green sea slug is able to produce its own food? - correct
answers ✔✔C. The slug is able to use the chloroplasts to make glucose molecules that it then uses for
cellular respiration
8. Which property would give the green sea slug the capability to incorporate the genes of V. litorea into
its own DNA? - correct answers ✔✔S. They both use the same nucleotides in their DNA
9. In the investigation of oxygen dynamics in E. Chlorotica cultures, gross photosynthesis is reported after
seven months in culture, even in the apparent absence of oxygen production. Which statement provides
the best reasoning to explain this observation? - correct answers ✔✔A. The oxygen produced in
photosynthesis is used in cellular respiration.
10. Based on the model of the E. chlorotica life cycle, at which stage is the organism most likely capable
of carrying out photosynthesis? - correct answers ✔✔S. As a pigmented adult
11. Which claim is MOST consistent with the evidence that psbO DNA sequences are detected in E.
Chlorotica eggs? - correct answers ✔✔B. The psbO gene was transferred from V. Litorea to a recent
ancestor of E. Chlorotica.
12. Which statement correctly uses the data from the table to support a claim that nuclear genes
support chloroplast function in V. Litorea? - correct answers ✔✔M. psbO DNA sequences are detected in
the nucleus but not in chloroplasts.
13. Which action could lead to a reduction in atmospheric carbon? - correct answers ✔✔D. Humans
planting trees in a forest.
14. Bees cross-pollinate flowers when moving from flower to flower to obtain nectar. Bees use the
collected nectar to create honey. Which three ecosystem services are best represented by this model? -
correct answers ✔✔M. Provisioning services: goods provided by or produced by ecosystems.
P. Regulating services: benefits obtained from regulation of ecosystem services.
S. Supporting services: services necessary for production of other ecosystem services.
15. Which TWO natural events would lead to this type of succession? - correct answers ✔✔C. Lava flow
from a volcano
With 100% Correct Answers
1. Which change in DNA will cause a heritable germline mutation? - correct answers ✔✔C. A DNA
replication error occurs in a sperm-producing cell
2. A student is investigating how substrate concentration affects the rate of an enzyme- catalyzed
reaction. Which three variables should be kept constant in the setup of the student's investigation? -
correct answers ✔✔M. Temperature of the reaction
P. Amount of enzyme
T. pH of the reaction
Tupai is part of the Leeward Islands. For years, people were not allowed on this island. Recently, it has
been opened to tourists. How will increased development and human interactions likely affects
succession on this island? - correct answers ✔✔C. Biodiversity will decrease as the number os species
decreases.
4. A cell model is shown. Students were instructed to review the types and number of structures that are
present in this cell model. - correct answers ✔✔M. Human stem cell
S. Sea Urchin Embryo Cell
T. Mammalian white blood cell
5. Which claim about reproduction in dogs can best be supported using a valid argument? - correct
answers ✔✔B. Gametes from both dogs are needed to maintain the correct number of chromosomes in
the offspring.
6. Which change would lead to higher carbon dioxide levels in the atmosphere? - correct answers ✔✔R.
An increase in the burning of fossil fuels
, 7. Which statement best explains how the green sea slug is able to produce its own food? - correct
answers ✔✔C. The slug is able to use the chloroplasts to make glucose molecules that it then uses for
cellular respiration
8. Which property would give the green sea slug the capability to incorporate the genes of V. litorea into
its own DNA? - correct answers ✔✔S. They both use the same nucleotides in their DNA
9. In the investigation of oxygen dynamics in E. Chlorotica cultures, gross photosynthesis is reported after
seven months in culture, even in the apparent absence of oxygen production. Which statement provides
the best reasoning to explain this observation? - correct answers ✔✔A. The oxygen produced in
photosynthesis is used in cellular respiration.
10. Based on the model of the E. chlorotica life cycle, at which stage is the organism most likely capable
of carrying out photosynthesis? - correct answers ✔✔S. As a pigmented adult
11. Which claim is MOST consistent with the evidence that psbO DNA sequences are detected in E.
Chlorotica eggs? - correct answers ✔✔B. The psbO gene was transferred from V. Litorea to a recent
ancestor of E. Chlorotica.
12. Which statement correctly uses the data from the table to support a claim that nuclear genes
support chloroplast function in V. Litorea? - correct answers ✔✔M. psbO DNA sequences are detected in
the nucleus but not in chloroplasts.
13. Which action could lead to a reduction in atmospheric carbon? - correct answers ✔✔D. Humans
planting trees in a forest.
14. Bees cross-pollinate flowers when moving from flower to flower to obtain nectar. Bees use the
collected nectar to create honey. Which three ecosystem services are best represented by this model? -
correct answers ✔✔M. Provisioning services: goods provided by or produced by ecosystems.
P. Regulating services: benefits obtained from regulation of ecosystem services.
S. Supporting services: services necessary for production of other ecosystem services.
15. Which TWO natural events would lead to this type of succession? - correct answers ✔✔C. Lava flow
from a volcano
