Biology Biomolecules Plants part 9 (Polysaccharides) CBSE class 11 XI Biology Biomolecules Plants part 9 (Polysaccharides) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Biology Biomolecules Plants part 6 (Oligosaccharides, Polysaccharides Introduction) CBSE class 11 XI Biology Biomolecules Plants part 6 (Oligosaccharides, Polysaccharides Introduction) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Biology Biomolecules Plants part 14 (Peptide bond, Fibrous, Globular protein) CBSE class 11 XI Biology Biomolecules Plants part 14 (Peptide bond, Fibrous, Globular protein) CBSE class 11 XI. By: ExamFearVideos … Continue reading →

Pulse rate | Circulation | Biology The pulse is generated in an artery when its wall swells and contracts during heart beat. When the heart contracts the blood it contains is pumped out under pressure and this pressure wave... By: KClassScienceChannel … Continue reading →

Illustration: Jo Gay. There is, by now, a large literature on the chemistry and biology of love and sex. If you dive into that literature, you learn pretty quickly that our love lives are biased by all sorts of deep unconscious processes. When men become fathers, their testosterone levels drop, thus reducing their sex drive. There's some evidence that it's the smell of their own infants (but not other people's infants) that sets this off. Women, meanwhile, have different tastes at different times in their cycles. During ovulation, according to some research, they prefer ruggedly handsome and risky men, while at other times they are more drawn to pleasant-looking, nice men. When men look at pictures of naked women, their startle response to loud noises diminishes. It seems that the dopamine surge mutes the prefrontal cortex, and they become less alert to danger and risk. This literature sometimes reduces the profound and transformational power of love into a series of mating strategies. But it also, like so much of the literature across psychology and the cognitive sciences these days, reinforces a specific view of human nature. We have two systems inside, one on top of the other. Advertisement Deep in … Continue reading →