A Marginal Adjustment Only Refers to a Minor Change

question 69

True/False

A marginal adjustment only refers to a minor change.

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Definitions:

Planula

The free-swimming, ciliated larva form of certain cnidarians, such as jellyfish, before it settles on a surface and develops into a polyp.

Miracidium

A free-swimming larval stage in the life cycle of certain parasitic flukes, hatching from eggs and infecting the first intermediate host, typically a snail.

Polyp Colony

An aggregation of many individual, yet genetically identical, polyps that are connected, forming organisms such as corals.

Collar Cells

Specialized cells found in sponges (Porifera) that have a collar-like structure and are involved in water filtration and nutrient capture.