This organism is a glass sponge. This particular type of
sponge lives in polar waters or deep in tropical waters
because its extremely porous structure helps them to
easily extract nutrients from these nutrient-depleted
This organism is segmented with a digestive and
circulatory system. It is shaped like a tube.
Earthworms are also generally decomposers.
Additionally, earthworms are hermaphrodites (contain
both female and male sex organs).
This organism has a transparent body, flat
underside, and is bilaterally symmetrical. Also, this
organism is tiny in size. Additionally, this organism
acts a hermaphrodite (contains both female and male
This is a miniscule organism that is about 0.5 mm
long. It has bilateral symmetry, typically lives in
freshwater, contributes to nutrient recycling, and is a
major food source for other organisms.
This organism is usually found in temperate and
tropical areas buried in the sand. They are typically 5
centimeters long. They have a dorsal nerve cord not
protected by bone, tentacles by their mouth that act as
sensory instruments, and breathe through their skin.
The sea star typically has five arms. Its outside surface
is shaped by its endoskeleton into shapes such as
spines across its surface. Sea stars typically are
predators and eat mollusks.
This organism resembles ancient organisms that were
in existence hundreds of millions of years ago and so
are called “living fossils.” The horseshoe crab has three
main body parts: the head, the abdominal area, and
the spine-like tail. Its color vary from a green-gray to a
dark brown. The top part consists of a shell that hides
the exposed body underneath.
This organism is mostly encased in a mud-covered
tube except for its tentacles, characterized by the
colors purple, red, and brown, when feeding. The
actual body of the organisms is either grey-purple or
This organism usually covers seaweeds. This collective
organism is a colony consisting of zooids that release an
exoskeleton made of chitin. This released exoskeleton
provides the shell of the organism known as Lacy Crust
Bryozoan. Lacy Crust Bryozoan can typically be found in
shallow waters and usually feeds on planktonic organisms.
This organism is the largest of all octopus species and
is considered one of the most intelligent invertebrates.
Additionally, the North Pacific Giant Octopus is
generally a reddish-brown color. White spots may
appear during mating and the entire octopus might
change to a white when threatened.
These organisms have at least one nerve cord, respire
through the skin, and have generally slim and short (in
length) bodies. The anus is at the end and, in this
particular class, have mouths at the front below the
brain. These organisms are slow-moving organisms,
powered by cilia.
These flatworms live mostly in humid places, are
nocturnal, and are predators or scavengers. Larger
ones are brightly colored. Some have cilia to help
This organism is a fragile organism. It feeds on planktonic
organisms. Its mouth is the origin of tentacles that stay
close to its body. It also has auricles that control the water
currents to guide prey into its mouth.
A sea-fan anemone is
characterized by the colors
red, pink, orange, and white. It
has as many as 80 tentacles. It
looks similar to a flower and is
usually attached to sea fans, as http://www.arkive.org/in
the common name implies. marine/index-latin2.html
The common jellyfish has a saucer-shaped center
fringed by small tentacles and four larger ones. The
four circles inside of the center are the gonads
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