Answer:
Explanation:
Each of these statements illustrates a different disorder.
1) Doona seems to be exhibiting Social Anxiety, since she is overreacting to new situations, most likely because she is afraid of being judged and feels awkward in social events.
2) Joseph's father seems to be exhibiting Bipolar 1 which is characterized by drastic mood swings with very high ups and very low lows in emotion.
3) Joan is experiencing Depression which is an intense emotional and physical sadness. Which is common when dealing with loss, especially a large quantity of loss like Joan.
4) Megan seems to have a phobia with beehives. A phobia is a increased fear of something, usually caused by bad experiences.
Answer:
Additive effect.
Explanation:
Additive effect may be defined as the phenomena in which two or more genes contribute for the single phenotype pf the organism. The additive effect do not follow the Mendel's law and shows quantitative trait.
The gene that are responsible for height shows different effect. The tall allele with two genes has more height than the single tall gene. Each gene has its effect and the addition of the particular gene enhances the phenotype effect of that particular gene. Here, the tall shows the additive effect.
Thus, the answer is additive effect.
Voluntary movement. I'm assuming that's what you're asking?
They are part of an organ system