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The Harvestmen Flash Mob Defense

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Gebruik ÊÊn voornaam zonder spaties. Gebruik zo nodig bijvoorbeeld SamB.
1. Harvestmen are best known for having tiny bodies and extremely long legs.
2. Leg autotomy involves the automatic of a harvestman’s own leg. (afwerpen / losmaken (0:23))
3. Which two special defenses are mentioned?
4. Harvestmen often gather in humid and poorly lit places during the day.
5. Some species form dense containing thousands of individuals. (verzamelingen / opeenhopingen (1:02))
6. What is the largest number of harvestmen mentioned in a mass aggregation?
7. The harvestmen in these groups are usually close relatives.
8. The cooperation between individuals cannot be explained by . (verwantschap / familieband (2:05))
9. What shows that these defensive groups are not based on family structure?
10. A disturbance can cause bobbing to spread through an entire cluster.
11. The movement through the group when one or more individuals are disturbed. (verspreidt zich / plant zich voort (2:30))
12. Why might bobbing be dangerous for an isolated harvestman?
13. Harvestmen in larger groups are more likely to bob and continue the behavior for a longer . (duur / tijdsduur (3:38))
14. Experiments showed that isolated harvestmen bobbed more frequently than grouped individuals.
15. Why might an individual continue bobbing while the rest of its group is moving?
16. Scientists are certain that the chemicals released by harvestmen only discourage predators.
17. The purpose of the volatile chemical compounds remains genuinely . (omstreden / betwist (4:21))
18. How do harvestmen encourage others to return to a particular location?
19. Researchers have identified special environmental features that explain why harvestmen select these locations.
20. The repeated chemical marking causes pheromones to at the chosen location. (zich ophopen / verzamelen (5:01))
21. What remains unknown about harvestmen aggregations?
22. Why might living in a large group be both an advantage and a disadvantage for harvestmen?
23. The bobbing defense only appears effective when many individuals participate. Does this count as cooperation even though the animals are unrelated?
24. Why is experimental research necessary before scientists can conclude that a particular behavior protects an animal?
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Why Fish Can't Reach the Bottom of the Ocean

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Gebruik ÊÊn voornaam zonder spaties. Gebruik zo nodig bijvoorbeeld SamB.
1. No animals can survive at the deepest point of the Mariana Trench.
2. Crustaceans for food on the seabed. (naar voedselresten zoeken / aas eten (0:07))
3. What unusual pattern exists in trenches across the Pacific?
4. Alan Jamieson originally trained and worked as an engineer.
5. The discovery of several fish together suggested that entire could survive at extreme depths. (populaties / diergroepen van dezelfde soort (2:38))
6. What did Jamieson’s team film near Japan in 2008?
7. TMAO molecules help cells cope with their . (omgeving / omstandigheden (3:14))
8. The concentration of TMAO decreases as a fish swims deeper.
9. What did Paul Yancey predict by extending the line on his graph?
10. Deep-sea pressure mainly threatens fish by flattening their bodies.
11. TMAO helps proteins maintain their molecular under immense pressure. (structuur / bouw (6:11))
12. Why can fish not continue increasing the amount of TMAO indefinitely?
13. Temperature and pressure both have a effect on cells. (verstorend / ontregelend (7:47))
14. The deepest fish was discovered in the Mariana Trench.
15. Why did Jamieson expect to find the deepest fish in the Ogasawara Trench?
16. Most members of the snailfish family naturally live in extremely deep water.
17. Snailfish have several physical , including the absence of scales and a swim bladder. (aanpassingen (9:24))
18. How does the appearance of the deepest fish differ from popular expectations?
19. Several biological factors work together in a complex . (wisselwerking / samenspel (11:01))
20. Sharks and rays generally reach the same depths as snailfish.
21. Why can some invertebrates reach depths of 11,000 meters?
22. The video suggests that 8,000 meters may once have been the maximum depth of the ocean.
23. The 8,000-meter limit may not be , but connected to the geological history of the oceans. (willekeurig (12:57))
24. How does warmer water affect the depth limit for fish?
25. Why is a laboratory prediction more convincing when researchers later confirm it in the natural world?
26. The snailfish looks very different from the frightening deep-sea fish seen in films. Why do you think people expect deep-sea animals to look dangerous?
27. If changing ocean temperatures move the depth limit for fish, what consequences could this have for deep-sea ecosystems?
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Exercise 1

Writing or Talking

  1. At the beginning of his speech, Zohran talks about a dream. Which famous speech is he referring to? He mentions the name of the person who gave that speech, what is the name of that person?
  2. After listening to his speech, can you tell whether Zohran is a Democrat or a Republican? Explain how you know.
  3. Some Americans might describe Zohran as a socialist. Which parts of his speech could be seen as socialist ideas? Give examples.

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In this video, the cast of Outer Banks answer fun and sometimes awkward questions about fame, fan accounts, and everyday life. You will hear them share stories, joke with each other, and even admit a few secrets.

The exercises below will help you practice your English listening skills, learn new expressions, and discuss interesting topics. First, watch the video carefully. Then try the comprehension questions, vocabulary tasks, and discussion prompts.

Exercise 1

Watch the first 2 minutes of the video.

Exercise 2

Watch until 4 minutes to answer the following questions.

Exercise 3

Exercise 4 – Discussion Questions (Speaking / Writing)

Have you ever tried to get special treatment (like at a restaurant)?

  • What do you think about “ghosting”? Is it sometimes okay, or always rude?
  • What gives you the biggest “ick”?
  • Would you ever want to swap lives with someone? Who, and why?

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Roblox is one of the most popular online platforms for children and teenagers. In this video, we learn how Roblox is not just a game, but a place where kids create games for other kids. The video also shows how money is made on the platform and asks if that is fair.

As you watch, think about these questions:

  • Is Roblox “play” or “work”?
  • Who earns money on Roblox?
  • Should children who create games be treated like workers?

Watch the video until 6:26, then do the exercise below.

Exercise 1

Exercise 2

Watch the video until 6:24.