Discussion
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- Question
Primary phloem develops from
Options- A. lateral meristem
- B. protoderm
- C. extrastelar cambium
- D. provascular tissue
- Correct Answer
- provascular tissue
- 1. Radish is a
Options- A. bulb
- B. conn
- C. modified root
- D. tuber Discuss
- 2. What drink was invented by Charles Leiper Grigg in 1929?
Options- A. 7-Up
- B. Yoo-Hoo
- C. Pepsi
- D. Hawaiian Punch Discuss
- 3. Who invented Bakelite?
Options- A. Charles Goodyear
- B. Leo Hendrik Baekeland
- C. Roy Plunkett
- D. Henry Ford Discuss
- 4. What item, originally called the 'Whirlwind', was invented by Ives McGaffey in 1869?
Options- A. Blender
- B. Electric mixer
- C. Washing machine
- D. Vacuum cleaner Discuss
- 5. What Galileo invented?
Options- A. Barometer
- B. Pendulum clock
- C. Microscope
- D. Thermometer Discuss
- 6. Nymph is the name of young one of
Options- A. butterfly
- B. beetle
- C. housefly
- D. cockroach Discuss
- 7. Plants receive their nutrients mainly from
Options- A. chlorophyll
- B. atmosphere
- C. light
- D. soil Discuss
- 8. Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?
Options- A. Order
- B. Subspecies
- C. Class
- D. Genus Discuss
- 9. Out of 900 reported species of living gymnosperms, conifers are represented by about 500 species, About 2,50,000 species of angiosperms (flowering plants) have also been reported in the world. The vast and dominant woodlands in Europe, Asia, North America and mountains such as Himalayas are wooded with
Options- A. all gymnosperms, except conifers
- B. only angiosperms
- C. only conifers
- D. angiosperms and all gymnosperms except conifers Discuss
- 10. Plants are killed in winter by frost
Options- A. because of desiccation and mechanical damage to the tissues
- B. because no photosynthesis takes place at such low temperature
- C. because respiration ceases at such low temperature
- D. because there is no transpiration Discuss
Biology problems
Search Results
Correct Answer: modified root
Correct Answer: 7-Up
Explanation:
Grigg, who was from Missouri, originally named his creation 'Bib-Label Lithiated Lemon-Lime Soda'.
Correct Answer: Leo Hendrik Baekeland
Explanation:
Leo Hendrik Baekeland invented the first plastic called Bakelite.
Correct Answer: Vacuum cleaner
Correct Answer: Thermometer
Explanation:
Various authors have credited the invention of the thermometer to Cornelius Drebbel, Robert Fludd, Galileo Galilei or Santorio Santorio. The thermometer was not a single invention, however, but a development.
Galileo Galilei also discovered that objects (glass spheres filled with aqueous alcohol) of slightly different densities would rise and fall, which is nowadays the principle of the Galileo thermometer (shown). Today such thermometers are calibrated to a temperature scale.
Correct Answer: cockroach
Correct Answer: soil
Correct Answer: Class
Correct Answer: only conifers
Correct Answer: because of desiccation and mechanical damage to the tissues
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