Yes, platyhelminthes are diploblastic, meaning they have two primary germ layers during embryonic development: the ectoderm and endoderm. They lack a mesoderm layer.
The phylum Platyhelminthes is believed to have appeared on Earth during the Ediacaran period, around 550 million years ago. They are one of the earliest known groups of multicellular organisms.
during calamity,food security is very affected
how was texas affected by communication issues or developments during the civil war
The muscle affected during an inferior alveolar nerve block is the temporalis muscle.
The Jews and Gypsies within the ghetto were the most affected.
Malta was one area that was most affected during the World War 2 in 1940.
Elephants can masturbate by using their trunk or rubbing against objects. During this activity, they may exhibit behaviors such as increased vocalizations, restlessness, and physical movements like swaying or rocking back and forth.
[yes]}]}]}
Hernan Cortez
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The Japanese