Species are maintained in existence through the life spans
process of reproduction. Asexual reproduction produces
genetically identical offspring from a single parent cell. The process
of mitosis is associated with asexual reproduction and the growth and repair of cells
in sexually reproducing organisms.
Sexual reproduction produces offspring that have a
combination of genes inherited from two parents sex cells or gametes.
These gametes are produced
by the process of meiosis. The single cell
formed by the union of egg and sperm is called a zygote. The zygote
contains all the information necessary for growth, development, and eventual reproduction of
sexual reproduction occurs in a very similar manner to
other sexually reproducing animals. Both males and
specialized reproductive structures designed to produce
facilitate development. Both the male and female
have specialized chemicals or hormones which aid this process as well.
The development of humans and other sexually reproducing
a highly regulated process involving mitosis and differentiation.
Reproduction and development are subject to environmental impact. The
general process of birth, human development, and aging involves a
predictable series of events.
technology has medical, agricultural, and ecological
This technology has also stirred ethical concerns as well,
especially where this
technology applies to humans.
This page and the links at the left are designed to aid students in
reviewing the following topics which will appear on the New
York State Living Environment Regents Examination; asexual reproduction, sexual reproduction, and human
reproduction and development. In addition, students may test their knowledge of the material presented here by accessing multiple-choice questions from past Regents Exams.