Which traits are codominant or incompletey dominant? ( these traits don’t have a clear dominant or recessive , the heterozygous condition shows a “blending” or a “middle” condition)

Codominant-  traits don’t have a clear dominant or recessive

incomplete dominance-  the heterozygous condition shows a “blending” or a “middle” condition

Explanation:

In codominance, the traits are expressed equally in the phenotype thus they don't have a clear dominant or recessive state. For example the ABO blood group alleles. The alleles A and B are codominant each being expressed equally.

In incomplete dominance the traits show intermediate expression where one allele expresses itself more strongly than the other. An example in man is seen in the inheritance of the disease sickle cell anaemia. Heterozygote who carry the sickle cell gene are said to have sickle cell trait and as such the carrier allele (HBa) has a stronger influence on the phenotype than the dominant alle (HBs).

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.