ANCESTRAL PROTIST Metazoa Eumetazoa 770 million years ago 680 million years ago Bilateria 670 million years ago Porifera Ctenophora Cnidaria Acoela Deuterostomia Lophotrochozoa Hemichordata Echinodermata Chordata wwwwww Platyhelminthes Syndermata Ectoprocta Brachiopoda Ecdysozoa Mollusca Annelida Nematoda Arthropoda Which of the following statements is true based on the phylogenetic tree shown? Which of the following statements is true based on the phylogenetic tree shown? Sponges are basal animals. Bilaterians are polyphyletic. The Acoela are more closely related to echinoderms than to annelids. The animal kingdom is not monophyletic.

Which Scyphozoan life stage performs sexual reproduction? Gemmule Planula Scyphystoma Medusa Ephyra

Organisms from this group have such complex eyes that they can probably form images Sclerospongia Cubozoa Hydrozoa Scyphozoa Placozoa

Why do some biologists think that the apicomplexans descended from dinoflagellates?

Which protozoan group has Pseudopodia?

Amoebas and foraminferans are distantly related protists. They are however similar in the fact that; They are both encased in shells They are both photosynthetic They are both members of the Archaeplastida They both feed via psuedopods

The term Ecdysozoa refers to....? Group of answer choices having a backbone having jointed legs filter-feeding molting

Which of these six organisms are autotrophic and which ones are heterothropic ?

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The paraphyletic phylum Choanozoa contains chytrid zoospores and human sperm, among many other creatures.  What are some important aspects of the group, in terms of its evolutionary significance?