Explain concept of IVF technique. ​

=>During in vitro fertilization, eggs are removed from mature follicles within an ovary

(A). An egg is fertilized by injecting a single sperm into the egg or mixing the egg with sperm in a petri dish

(B). The fertilized egg (embryo) is transferred into the uterus

IVF is the most effective form of assisted reproductive technology. The procedure can be done using your own eggs and your partner's sperm. Or IVF may involve eggs, sperm or embryos from a known or anonymous donor. In some cases, a gestational carrier — a woman who has an embryo implanted in her uterus — might be used.

the correct option is option d

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.