viernes, 20 de marzo de 2009

viernes, 13 de marzo de 2009

What is a Cell


a cell is the smallest unit of an organism that can carry on life functions.

viernes, 27 de febrero de 2009

What is Sexual Reproduction

a type of reproduction in which two sex cells, an egg and a sperm join to form a zygote, which is a new diploid cell created with a sexual reproduction. Which will develop into a new organism with a unique identity.

What is Mitosis


cell process in which the nucleus divides to form two nuclei identical to each other,and identical to the original nucleus in a series of steps, forming two new cells.

prophase
metaphase
anaphase
and telophase

What is Meiosis

reproductive process that produces four haploid sex cells from onecell and ensures offspring will have the same number of cromosomesas the parent organisms.