1 Identify the various parts of a typical flower and give their functions. 2  Relate the sequence of events that give rise to microspores and megaspores. 3  Describe the development of the male and female gametophyte.  Describe the double fertilization that occurs uniquely in the flowering-plant life cycle.
Codenamed Operation Overlord, the battle began on June 6, 1944, also known as D-Day, when some 156,000 American, British and Canadian forces landed on five beaches along a 50-mile stretch of the heavily fortified coast of Franceâs Normandy region.
Calcium is probably the nutrient you think of first. But vitamin D is just as important for keeping bones strong and preventing the bone disease osteoporosis. Vitamin D helps your intestines absorb calcium from the food you eat. Getting enough of both nutrients is an important part of making sure your bones are dense and strong. Unlike calcium, which you only get through food, your body makes vitamin D when sunlight hits your skin.