|
|
|
 |
These animals are often confused, so they are
treated together.
"Amphibian" comes from the Greek amphi,
meaning "both," and bios, meaning "life." It has two
meanings. First, the animals physically change. Reproduction is
accomplished through external fertilization. The female spawns her
eggs in water where they are fertilized by the male. After hatching,
most amphibians undergo a dramatic change known as metamorphosis.
They slowly change from fishlike, water-dwelling animals to ones
better suited for life on land. Fins and gills become legs and
lungs. The most well-known example is the change from tadpole to
frog. Second, the term also refers to these animals first living in
the water and later on land.
Reptiles reproduce by sexual intercourse and internal
fertilization, just like mammals. Amniotic eggs develop within the
mother’s abdomen. Once they are sufficiently developed, the mother
lays them and they hatch. However some reptiles give birth to live
young. |
|
Standard poster is large
24" x 36" size that fits standard frames. Printed on heavy,
acid-free paper using non-fade inks, then coated to provide satin
finish and provide protection from scratching. Laminated
poster is completely encapsulated in heavy 3 mil
plastic for long life. |
| Standard
Poster: |
No. GS410-AS |
Only $9.95 |
|
| Laminated
Poster: |
No. GS410-AL |
Only $14.95 |
|
|
|
|
