This video segment adapted from NOVA explains how flowers play a central role in the reproductive cycle of plants. Their striking array of colors, patterns, fragrances, and nectar all require lots of ...
When the world's first flower sprouted about 140 million years ago, it was bisexual, possessing both male and female reproductive parts, according to the researchers who virtually reconstructed the ...
Scientist have discovered that pollen, the organ that contains the plant male gametes, communicate with the pistil, their female counterpart, using a mechanism commonly observed in the nervous system ...
Research by plant scientists has uncovered a snapshot of evolution in progress, by tracing how a gene mutation over 100 million years ago led flowers to make male and female parts in different ways.
H. macrantha flowers have both male and female reproductive organs. To avoid mating with themselves, individual flowers go through a male phase and then a female phase. They rely on hummingbirds to ...
In some deserts of the world, a series of heavy rains can trigger many species of plant to flower at the same time. Beneath Death Valley lies a massive seed bank of desert wildflowers and when heavy ...
NCERT Solutions for Class 7 Science, Chapter 12 - Reproduction in Plants is available here. This chapter is also available here for download in PDF format. Download link is given at the end of this ...