Red Tide Questions

remotely controlled vehicles on the ocean floor scuba diving equipment 1. What technology do scientists use to observe Red Tide on a large scale? satellite cameras remotely controlled vehicles on the ocean floor deep sea submarines scuba diving equipment

it produces toxins that can cause sickness or death in organisms 2. Why is Red Tide harmful? it clogs boat engines it stings whales fish starve without it it produces toxins that can cause sickness or death in organisms

3. What is Red Tide? A. red seaweed B. an overgrowth of dinoflagellates in the water C. too many crabs D. concentrated waste from killer whales

4. Red tide is an algal bloom that is not harmful to the ecosystem. True False

5. A dinoflagellate is a microscopic jellyfish a bacterium that multiplies quickly a single-celled organism with two flagella a type of marine shell

Striated Pink Jellyfish 6. What is the name of the organism responsible for much of the Red Tide in the Gulf of Mexico? Karenia brevis Striated Pink Jellyfish Sargassum weed Cordgrass

7. Which of the following is NOT a harmful effect of Red Tide? it can kill fish it can make shellfish unfit to eat it litters beaches with dead plant debris it makes people stay home from the beach

8. Which of the following do some scientists hypothesize to be the cause of Red Tide? dolphins feeding on seaweed too close to shore B. methane seeps from the ocean floor C. invasive plant species D. too many nutrients in the water

9. What pattern of growth occurs with Red Tide? exponential growth stagnant growth linear growth no growth

10. If you start with one dinoflagellate, how many days would it take to get 512 dinoflagellates if they double in number every day? 10 20 50 100