What distinguishes a coelomate animal from a pseudocoelomate animal is that coelomates
A) have a body cavity, whereas pseudocoelomates have a solid body.
B) contain tissues derived from mesoderm, whereas pseudocoelomates have no such tissue.
C) have a body cavity completely lined by mesodermal tissue, whereas pseudocoelomates do not.
D) have a complete digestive system with mouth and anus, whereas pseudocoelomates have a digestive tract with only one opening.
E) have a gut that lacks suspension within the body cavity, whereas pseudocoelomates have mesenteries that hold the digestive system in place.
Micrographs showing cytokinesis in animal and plant cells
Approach used to determine the evolutionary relationships among many animal species using molecular
To maintain balance the bipedal pelvis has a foreshortened ilium and is broader and bowl-shaped. The
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Animal Intelligence
Cytokinesis in animal cells (a) and plant cells (b)