Predator or photosynthetic?

July 6, 2009 at 2:36 am (Uncategorized) (, , )

Hatena is a single-cell organism, swimming around in the water, using a little feeding apparatus to eat cells and organic material smaller than itself. At some point, it would feed on another unicellular algae, the Nephroselmis. After ingesting the algae, this mouth disappears. Instead, it is replaced by an eyespot from the algae. The Hatena then gets all its energy from the photosynthetic algae and swims towards the light so the algae gets more sun.

From Byte Size Biology


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Flowering dogwood trees

March 13, 2009 at 4:50 pm (Uncategorized) (, , , )

Flowering Dogwood blossoms
The Flowering dogwood (Cornus florida) is a deciduous tree that grows up to 30 feet high and is often wider than it is tall. The leaves are oval with pointed tips. It blooms in the early spring. The flowers themselves are hard to see, they grow in clusters with each flower having four greenish-yellow petals. These clusters of flowers are surrounded by four large white petals (some cultivars have pink or even red petals) called bracts. Late summer to early fall the bright red fruit (drupes) ripen. There can be two to ten of these for each flower cluster, each is about 10-15 mm long. The flowering dogwood tree is native to eastern North America from southern Main to Northern Florida and west to eastern Kansas.

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