- precocious heterochronic variations
Variations that result in the acceleration of the rate, frequency or extent of the progression of an integrated living unit: an anatomical structure (which may be a subcellular structure, cell, tissue, or organ), or organism over time from an initial condition to a later condition, compared to control.
- retarded heterochronic variations
Variations that result in the deceleration of the rate, frequency or extent of the progression of an integrated living unit: an anatomical structure (which may be a subcellular structure, cell, tissue, or organ), or organism over time from an initial condition to a later condition, compared to control.
- nuclear morphology variation early emb
Animals exhibit variations in the form, structure or composition of the membrane enclosed organelle which contains most of the cell's genetic material during the early embryonic stage compared to control animals (Wormatlas).
- molt variant
Animals exhibit variation in timing or ability to molt.