CHECK FOR UNDERSTANDING.
Animal CamouflageDirections: Choose the correct word or words to complete the sentence.
1. An ethologist studies (animal behavior, animal diseases).
2. Zebras camouflage by (disruptive coloration, disguise).
3. Walking stick bugs camouflage by (disruptive coloration, disguise).
4. How living things fit into their environment is called (adaptation, fitness).
5. Changes in heredity features over time are called (evolution, mimicry).
ANSWER
1. animal behavior
2. disruptive coloration
3. disguise
4. fitness
5. evolution
Buried Cities
Directions: Determine if each statement below is true or false (circle the correct letter). If a sentence is false, rewrite it to make the sentence true.
T F 1. Frank Goddio discovered the fabled Egyptian city Herakleion on a mountaintop.
T F 2. Herakleion disappeared 2,000 years ago.
T F 3. The ancient city of Zeugma, Turkey, is endangered by the rising waters of the newly dammed Euphrates River.
T F 4. Zeugma is known for its beautiful sculptures.
T F 5. La Gran Saposa, which may be the remains of the mythical El Dorado, is a pre-Aztec city.
1. False. Goddio discovered Herakleion while diving in the Mediterranean Sea.
2. False. Heraldeion disappeared 1,300 years ago.
3. True.
4. False. Zeugma is known for its spectacular mosaic floors.
5. False. La Gran Saposa houses ruins of a pre-Incan city.
Remote Control Surgery
Directions: Answer the questions below in complete sentences.
1. What kind of operations are currently being performed by remote control surgery?
2. What does the robot look like?
3. Where is the surgeon during remote control surgery and how does he manipulate the robotic arms?
4. Why is robotic heart surgery safer for the patient than conventional surgery?
5. What is the difference in a heart patient's recovery time from conventional versus, remote control surgery?
1. Heart operations are currently being performed by remote control surgery
2. Three 0.9 meter-long robotic arms are positioned above the patient.
3. Sitting several feet away at a console, the surgeon watches on a computer screen and moves robotic arms with two pencil-sized control sticks.
4. Unlike a normal heart operation, robotic surgery doesn't stop the heart and divert blood to a heart-lung machine. Incisions are tiny instead of running from the patient's neck to abdomen.
5. Average recovery time from conventional heart surgery is six weeks, while recovery time from robotic surgery is one week.
 Printer friendly
 Cite/link
 Email
 Feedback
| |
| Publication: | Science World |
|---|---|
| Date: | Nov 13, 2000 |
| Words: | 393 |
| Previous Article: | Science in the News Quiz. |
| Next Article: | Dig this Fossil. |
| Topics: | |
| CHECK FOR UNDERSTANDING. |
| CHECK FOR UNDERSTANDING. |
| TRASH TRENDS. |
| CHECK FOR UNDERSTANDING. |
| Science in the news. |
| Science in the news. |
| Science in the news. |
| Ensuring clear communication. |