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Florida State Assessments · Biology 1 EOC

Florida Biology 1 EOC Practice Test

Build Florida Biology 1 readiness with five focused 10-question sets covering cells, energy flow, genetics, evolution, ecology, homeostasis, and scientific investigation.

Florida Biology 1 EOC practice sets

This Florida Biology 1 EOC Practice Test page provides five short practice sets with 10 original multiple-choice questions each. The sets support Biology 1 EOC readiness with cells, homeostasis, energy flow, genetics, DNA, evolution, ecology, populations, scientific investigation, and biological evidence.

Biology 1 skills covered

  • Cell structures, membranes, transport, organelles, enzymes, ATP, cell division, and homeostasis
  • Photosynthesis, cellular respiration, food webs, trophic levels, energy transfer, decomposers, and nutrient cycling
  • DNA, RNA, protein synthesis, heredity, Punnett squares, mutations, meiosis, natural selection, and common ancestry
  • Population growth, carrying capacity, symbiosis, habitat fragmentation, carbon cycling, biodiversity, and conservation
  • Integrated biology reasoning with experimental variables, ecosystem services, evidence, models, and claim-evidence-reasoning explanations

How to use this page

Complete one 10-question set at a time. Use the model, data, or biological process in each question as evidence. Review the explanation after each response and note whether the missed skill involves structure, energy, inheritance, ecology, or investigation.

This is supplemental State Test Practice, State Assessment Practice, and Standardized Test Practice for Florida Biology 1 EOC preparation. It does not replace current Florida Department of Education guidance, official assessment materials, accommodations, or testing policies.

Review the Florida State Assessments hub, the Florida State Test Practice page, or the official Florida FAST and B.E.S.T. assessment information for current program details.

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Florida Biology 1 EOC Practice Questions

A 10-question Florida Biology 1 EOC practice set on ecology, populations, and interactions, with answers and explanations.

Read each biology situation, model, or data description carefully, choose the best answer, and review the explanation after responding.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which factor is density-dependent in a population?

Please select an answer first.

Correct answer: A

The correct answer is Competition for food.

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Competition becomes stronger as population density increases.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Competition becomes stronger as population density increases.

2. QuestionMultiple choice

A population grows rapidly when resources are abundant, then levels off when resources become limited. What does the leveling indicate?

Please select an answer first.

Correct answer: B

The correct answer is The population has reached or is approaching carrying capacity..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Carrying capacity is the largest population an environment can support over time.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Carrying capacity is the largest population an environment can support over time.

3. QuestionMultiple choice

Which relationship benefits one organism while harming the other?

Please select an answer first.

Correct answer: C

The correct answer is Parasitism.

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: A parasite gains resources while its host is harmed.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

A parasite gains resources while its host is harmed.

4. QuestionMultiple choice

A new road divides a forest into small sections. Which effect is most likely?

Please select an answer first.

Correct answer: D

The correct answer is Habitat fragmentation can reduce movement and isolate populations..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Dividing habitat can isolate populations and limit movement between them.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Dividing habitat can isolate populations and limit movement between them.

5. QuestionMultiple choice

Which process adds carbon dioxide to the atmosphere?

Please select an answer first.

Correct answer: A

The correct answer is Cellular respiration.

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Cellular respiration releases carbon dioxide as glucose is broken down.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Cellular respiration releases carbon dioxide as glucose is broken down.

6. QuestionMultiple choice

A lake receives excess nutrients from fertilizer runoff. Which result is most likely?

Please select an answer first.

Correct answer: B

The correct answer is An algal bloom followed by decreased oxygen as decomposers break down algae..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Excess nutrients can cause algal growth and oxygen depletion during decomposition.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Excess nutrients can cause algal growth and oxygen depletion during decomposition.

7. QuestionMultiple choice

Which statement describes a limiting factor?

Please select an answer first.

Correct answer: C

The correct answer is A shortage of water limits the number of plants in a desert..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Limited water restricts survival and reproduction, making it a limiting factor.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Limited water restricts survival and reproduction, making it a limiting factor.

8. QuestionMultiple choice

A population pyramid has a very wide base and a narrow top. What does it suggest?

Please select an answer first.

Correct answer: D

The correct answer is Many young individuals and potential for future population growth..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: A wide base represents many young individuals who may reproduce later.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

A wide base represents many young individuals who may reproduce later.

9. QuestionMultiple choice

A species is removed from a food web and its prey population increases greatly. What is the most likely role of the removed species?

Please select an answer first.

Correct answer: A

The correct answer is It was a predator of that prey..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Removing a predator can release its prey from predation pressure.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Removing a predator can release its prey from predation pressure.

10. QuestionMultiple choice

Which action best supports biodiversity in a threatened ecosystem?

Please select an answer first.

Correct answer: B

The correct answer is Protect varied habitats and maintain connections between them..

  1. Identify the biology concept: Read the process, model, data, or organism interaction carefully and identify the biological relationship being tested.
  2. Choose the best answer: Protecting diverse connected habitats supports more species and genetic exchange.
  3. Check the evidence: Make sure the answer matches the structure, process, energy flow, inheritance pattern, or evidence described in the question.

Protecting diverse connected habitats supports more species and genetic exchange.

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Frequently asked questions about Florida Biology 1 EOC Practice

What Biology 1 skills are covered?

The practice sets cover cells, membranes, organelles, energy flow, photosynthesis, cellular respiration, genetics, DNA, evolution, ecology, populations, homeostasis, and scientific investigation.

How many questions are included?

There are five practice sets with 10 questions each, for 50 questions in total. Each set can be completed separately.

Are these official Biology 1 EOC questions?

No. These are original supplemental practice questions. Check the latest Florida Department of Education assessment information for current Biology 1 EOC details, materials, accommodations, and policies.