Friday, July 23, 2010

Kaitlyn's 10 collected items.

Cnidarians have a diplobastic, radially symmetrical body that includes a gastrovascular cavity with a single opening that serves as both mouth and anus. Cnidarians include corals, hydras, and jellyfish, like this one that I found next to our dock.

Arthropods have segmented bodies, hard exoskeletons and jointed appendages including, their pincers, mouthparts, legs, backfins, and antennae. Crabs and lobsters are good examples of an arthropod.
An ectotherm is an organism that gains most of their heat from external sources, such as sitting in the sun or in the shade, like this snake I found by a pile of wood.
An exoskeleton is a hard case deposited on an animal's surface, with each growth spurt an arthropod, like this cicada, must shed its old exoskeleton and begin to develop a new one.

This slug is an example of a gastropod. Many gastropods have a shell that the animal can retreat into when threatened, they move by using a rippling motion, often leaving a trail of slime behind them. They also usually have a distinct head with eyes at the tips of tentacles, like this slug I found inside of our canoe.

An insect is segmented into three regions; head, thorax and abdomen, like this grasshopper I found on the side of our house.
Lichens grow on the surfaces of rocks, rotting logs, trees, and roofs in various forms. I found this leaflike lichen on a tree outside of our house.
An autotroph is an organism that uses energy from the oxidation of inorganic substances or the sun, like this baby spruce tree, to make organic molecules from inorganic ones.
A female pine cone contains microscopic female gametophytes inside an ovulate cone.
A tomato is an example of a fleshy fruit with seeds, some other examples of fleshy fruits with seeds are grapefruits, nectarines and plums.



1 comment:

Note: Only a member of this blog may post a comment.