What are the traits of vegetative organ metamorphosis of plants?
A. Morphological changes
B. Can be inherited
C. Physiological changes
D. Can not be inherited
查看答案
Which season woods developed by plants collectively known as annual rings ?
A. Spring
B. winter
C. Summer
D. Autumn
_________________ discovered the artemisinin.
A. Ms Tu You-you
B. Mr Yuan Long-ping
C. Mr Mo Yan
D. Ms Wu Ming-zhu
Pollination is that _____________ are transferred on the stigmas.
A. fruits
B. flowers
C. pollens
D. seeds
The fusion of male and female gametes (or cells) is called the_____________.
A. pollination
B. blooming
C. fruiting
D. fertilization