41. Which of the following would be the best title for the passage? 1. seaweeds and Land Plants 2. Composition of seaweeds 3. The Rootless seaweed 4, Suction and the Seaweeds
42. Another general name for seaweeds is 2. Algae 1. kelp 4. Sargasso plants 3, suction weeds
43. Many seaweeds attach themselves to objects in order to 2. Suck food from the water 1. remain in one place 4. Form large groups 3, wash themselves
44. According to the passage, which of the following is true of free-floating algae? 1. They are extremely large. 2. They are frequent near rocks and piers 3. They move with the water 4. They resemble higher land plants
Can trees talk? Yes, but not in words. Scientists have reason to believe that trees do comm each other. Not long ago, researchers learned some surprising things. First, a willow tree attacked i caterpillars changed the chemistry of its leaves and made them taste so awful that the caterpillars g stopped eating them. Then, even more astonishing, the tree sent out special vapors, an alarm signa neighbors to change the chemistry of their own leaves and make them less tasty. Communication, of course, doesn't need to be in words. We can talk to each other by a st shrug of our shoulders, or a gesture with our hands. We know that birds and animals use a vocabu
41. Which of the following would be the best title for the passage? 1. seaweeds and Land Plants 2. Composition of seaweeds 3. The Rootless seaweed 4, Suction and the Seaweeds 42. Another general name for seaweeds is 2. Algae 1. kelp 4. Sargasso plants 3, suction weeds 43. Many seaweeds attach themselves to objects in order to 2. Suck food from the water 1. remain in one place 4. Form large groups 3, wash themselves 44. According to the passage, which of the following is true of free-floating algae? 1. They are extremely large. 2. They are frequent near rocks and piers 3. They move with the water 4. They resemble higher land plants Can trees talk? Yes, but not in words. Scientists have reason to believe that trees do comm each other. Not long ago, researchers learned some surprising things. First, a willow tree attacked i caterpillars changed the chemistry of its leaves and made them taste so awful that the caterpillars g stopped eating them. Then, even more astonishing, the tree sent out special vapors, an alarm signa neighbors to change the chemistry of their own leaves and make them less tasty. Communication, of course, doesn't need to be in words. We can talk to each other by a st shrug of our shoulders, or a gesture with our hands. We know that birds and animals use a vocabu
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