Which of the following is not an example of an organism's phenotype?

A) a plant gall produced by gall flies
B) the waving behavior of fiddler crabs
C) a heterozygote that has one dominant and one recessive allele
D) the open circulatory system in a beetle

Phenotype

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Gall Flies

Insects that induce the formation of galls (abnormal growths) on plants, which serve as both food source and habitat for the insect's larvae.

Fiddler Crabs

A group of crab species known for their sexually dimorphic claws, where males have one very large claw used for communication and combat.