Identifying The Different Ecosystems
The ability to reproduce is a
a very important property of life.
Living things that cannot
reproduce will slowly
disappear from the life map
and become extinct. Several
factors can prevent living
things from being a successful
breeder; however, this will not
be covered at this time.
Reproduction takes place at all
levels of the organization
when a single cell can reproduce a multicellular organism
also can reproduce. The cells result of reproduction usually
resembles its parent if not identical in some cases.
The mechanism of reproduction can be one of several
mechanisms:
Living things can reproduce sexually; this means male
and female organisms to produce sperm and egg, after
the sperm fertilizes the egg a new organism has been
reproduced.
Different organisms reproduce via asexual reproduction;
this does not require sperm and egg or fertilization at
the correct conditions a new organism will bud out from
the parent such as the Hydra.
The third mechanism can be seen in bacteria when one
cell is duplicated into two daughter cells.
For any of these mechanisms and any living organism’s
condition, the environment must be good for reproduction
for the offspring to survive.
Growth & Development
Growth means an increase in the size and the number of
cells, the human body starts after fertilization as one cell
that undergoes mitosis and continues to increase in
numbers. After birth this continues and results in building
different organs and structures developed to reach their
functional level, DNA controls the degree and level of
growth and development.
The stages of development are also different from one
species to another in some animals they can reach the fully
developed organism in weeks or months for others will
require years. Any delays in the growth will result in delays
in development, which can be very harmful to the organism.
Movement
Movement is another property of living things, this
movement can result from the movement at the cell level in
which the cell will move substances and material across the
plasma membrane in and out, the next level can be
detected at the organ level the heart pushes blood out, the
small intestate continues to move digested materials and
skeletal muscles move the hall body as one unit. These
movements come via precise control and coordination.
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