Nekton Exploration Worksheet
Explore the fascinating world of nekton, marine organisms that can swim independently of currents, with this engaging Grade 8 science worksheet.
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Nekton Exploration Worksheet
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following best defines nekton?
Organisms that float passively in water currents.
Organisms that live attached to the ocean floor.
Organisms that can swim actively and independently of currents.
Microscopic organisms that form the base of the food web.
2. Which of the following is NOT an example of nekton?
Whale
Jellyfish
Tuna
Shark
3. Nekton are typically found in the zone of the ocean, where there is enough light for photosynthesis to occur.
4. Many nektonic animals have a streamlined body shape, which helps them reduce as they swim through water.
5. All nekton are vertebrates.
True
False
6. Nekton play an important role in marine food webs by consuming smaller organisms and being prey for larger ones.
True
False
7. Describe two adaptations that help nektonic organisms move efficiently through water.
8. Explain the difference between plankton and nekton.
Match each nekton group with its characteristic.
9. Marine Mammals
a. Have gills and fins to move through water.
10. Marine Reptiles
b. Breathe air and have blubber for insulation.
11. Fish
c. Lay eggs on land and have scales.