View Full Profile. Learn about our Editorial Policies. In the flowering plant world, reproduction means an intricate succession of events. It begins when a pollen grain that carries the sperm cells ...

Plants droop and shed their leaves when parched, but with a splash of water, their stems regain strength and their leaves ...

Animal cells and plant cells can form tissues ... Sex cells are called gametes. These are sperm and eggs (or ova) in animals, and pollen and ova in plants eggs (or ova ) are female gametes ...

The tail enables the sperm to swim. The nerve cell is extended ... They therefore support the plant. Dissolved sugars and amino acids can be transported both up and down the stem.

A sperm cell and an egg cell each contain half the ... He bred generations of pea plants and meticulously kept track of each plant’s traits from size to color to seed shape.

Fathers may carry traces of their childhood trauma in their sperm cells, a new study finds. The new research, published Jan.

But a technique called surrogate sire technology—in which males are first sterilized and then transplanted with stem cells to produce sperm from genetically desirable donors—may soon join the list, ...

Meiosis, as described above, is the process by which certain sex cells are created. If you're male, your body uses meiosis to create sperm cells; if you're female, it uses meiosis to create egg cells.