Subscriptions must be canceled at least three days before your renewal date to avoid being charged for the next billing cycle. 1  Sign in to your account and select the subscription you want to cancel. 2  Select Cancel subscription. 3  Select Thanks but no thanks, I still want to cancel to confirm your cancelation.
Binomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.inomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.
Platyhelminthes. Members of the phylum Platyhelminthes are flatworms, such as the planarian. Grubs and tapeworms are other examples of flatworms. Flatworms display bilateral symmetry; that is, the left and right halves of the body are mirror images of one another.Another characteristic of the platyhelminthes is cephalization.Cephalization means that one end of the animal functions as a head.The âheadâ contains a mass of nerve cells that acts as a brain and specialized regions for sensing light, chemicals, and pressure.nother characteristic of the platyhelminthes is cephalization.Cephalization means that one end of the animal functions as a head. The âheadâ contains a mass of nerve cells that acts as a brain and specialized regions for sensing light, chemicals, and pressure.