Asked by Jordan Canada on Jun 17, 2024
Verified
The first animals to show cephalization have several characteristics. Which of the following is NOT one of them?
A) These animals were triploblastic.
B) These animals had a proboscis.
C) These animals were in phylum Platyhelminthes.
D) These animals are placed in the group Lophotrochozoa.
E) These animals followed the protostome pattern of embryonic development.
Cephalization
The evolutionary trend towards the concentration of sensory and neural organs in the anterior (head) part of an organism.
Triploblastic
Refers to organisms that during embryonic development form three primary germ layers: the ectoderm, mesoderm, and endoderm, which give rise to all bodily tissues and organs.
- Comprehend the phylogenetic connections and taxonomy of invertebrate phyla.
Verified Answer
HS
Hanna SpanosJun 19, 2024
Final Answer :
B
Explanation :
The first animals to show cephalization did not necessarily have a proboscis. Cephalization refers to the development of a head region where sensory organs and nerve cells are concentrated, not specifically to the presence of a proboscis.
Learning Objectives
- Comprehend the phylogenetic connections and taxonomy of invertebrate phyla.
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