Which of the Following Statements Accurately Describe Characteristics of Placozoans

question 180

Multiple Choice

Which of the following statements accurately describe characteristics of placozoans?

• A)Placozoans are tiny animals containing only a few thousand cells.
• B)Placozoans are simple animals, consisting of only two tissue layers that sandwich an interior fluid layer.
• C)Placozoans are, in spite of their morphological simplicity, genetically complex, sharing many genes for transcription factors, signaling molecules, and structural proteins with both cnidarians and bilaterian animals.
• D)Placozoans are a highly diverse group, consisting of many species occupying a wide range of habitats.
• E)Placozoans are large radially symmetrical animals superficially similar to cnidarians and ctenophores.

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Definitions:

Elaiosomes

Fleshy structures attached to the seeds of some plants, which are rich in lipids and proteins, attracting ants for seed dispersal.

Glyoxisomes

Specialized organelles found in plant cells that contain enzymes for the oxidation of fatty acids, contributing to the conversion of lipids to carbohydrates during germination.

Peroxisome

A small, membrane-bound organelle found in the cytoplasm of eukaryotic cells, involved in processes such as lipid metabolism and the detoxification of harmful substances.

Cotyledons

The primary leaves of a seedling, emerging from the embryo of a seed, important for the initial photosynthesis and nutrient absorption in many plants.