Aquatic Biology

Marine Biology MCQs with Answers

Welcome to the Marine Biology MCQs with Answers. In this post, we have shared Marine Biology Online Test for different competitive exams. Find practice Marine Biology Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Marine Biology.

Marine biology is that science of living things of the ocean and seas as well as saltwater environments. This field involves everything from plankton to blue whales, keeping in mind all interactions which help maintain a living ecosystem in oceans. Marine biologists study behavior, genetics, ecology, as well as effects of human activity in marine habitats to help people understand and preserve biodiversity on Earth.

Almost the excitement of marine biology can be said in discovering new species because this is a region which accounts for more than 70% of Earth’s surface, and therefore, it is very much unexplored, and the chances are never-ending. Sophisticated technologies like ROVs and satellite imaging are also used by marine biologists as they track marine animals’ routes for migration and monitor remote areas and deep-sea habitats.

However, there is a basic concern with conservation, which is the basic thrust of marine biology. Marine biologists are at the forefront of efforts to protect ecosystems against climate change, pollution, and overfishing. Thus, research outcomes shape policies and conservation strategies toward the achievement of sustainable marine biodiversity and healthy oceanic systems.

Marine Biology Online Quiz

By presenting 3 options to choose from, Marine Biology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Marine Biology Questions and Answers and click over the correct answer.

  • Test Name: Marine Biology MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

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Marine Biology MCQs

Marine Biology

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1 / 40

Which of the following is a primary producer in marine ecosystems?

2 / 40

Which of the following is a primary adaptation of marine mammals for living in water?

3 / 40

Which of the following is a primary function of seagrasses in marine ecosystems?

4 / 40

Which of the following is a major factor affecting marine biodiversity?

5 / 40

Which of the following is a characteristic of pelagic organisms?

6 / 40

What is the name for the zone of the ocean where no sunlight penetrates and temperatures are near freezing?

7 / 40

Which of the following is a primary consumer in marine food webs?

8 / 40

What is the primary function of coral reefs in marine ecosystems?

9 / 40

What is the term for the process by which marine organisms release stored energy?

10 / 40

What is the name for the process by which marine organisms convert sunlight into chemical energy?

11 / 40

Which of the following is a characteristic of marine mammals?

12 / 40

What is the term for the process by which marine organisms break down organic matter into simpler compounds?

13 / 40

Which of the following is a primary function of coral reefs in marine ecosystems?

14 / 40

Which of the following is a characteristic of benthic organisms?

15 / 40

Which of the following is a characteristic of deep-sea vents?

16 / 40

What is the term for the upper layer of the ocean where sunlight penetrates?

17 / 40

Which of the following is a characteristic of coral bleaching?

18 / 40

What is the term for the process by which marine organisms consume organic matter from dead organisms?

19 / 40

What is the term for the movement of ocean water caused by differences in temperature and salinity?

20 / 40

Which of the following is a primary predator in marine ecosystems?

21 / 40

Which of the following is a primary consumer in marine food webs?

22 / 40

What is the name for the area where a river meets the ocean?

23 / 40

What is the name for the phenomenon where warm surface waters in the Pacific Ocean cause changes in weather patterns?

24 / 40

Which of the following is a characteristic of kelp forests?

25 / 40

What is the term for the process by which marine organisms break down organic matter into simpler compounds?

26 / 40

What is the term for the study of marine organisms and their interactions with the environment?

27 / 40

What is the name for the region where freshwater from rivers meets saltwater from the ocean?

28 / 40

Which of the following is a characteristic of estuaries?

29 / 40

What is the name for the process by which marine organisms convert sunlight into chemical energy?

30 / 40

What is the term for the process by which dissolved gases are exchanged between the ocean and the atmosphere?

31 / 40

What is the name for the area of the ocean where waves break as they approach the shore?

32 / 40

What is the term for the upper layer of the ocean where sunlight penetrates?

33 / 40

Which of the following is a primary threat to coral reefs?

34 / 40

What is the name for the phenomenon where warm surface waters in the Pacific Ocean cause changes in weather patterns?

35 / 40

Which of the following is a major factor affecting marine biodiversity?

36 / 40

Which of the following is a type of marine ecosystem characterized by high levels of salinity?

37 / 40

Which of the following is a primary function of mangrove forests in coastal ecosystems?

38 / 40

Which of the following is a type of marine ecosystem characterized by high levels of salinity?

39 / 40

What is the primary source of energy for marine ecosystems?

40 / 40

What is the term for the microscopic organisms that drift in the ocean currents?

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Download Marine Biology MCQs with Answers Free PDF

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