Afather and his 4-year-old son are waiting in an exam room when the nurse enters and greets them. which activity that the nurse observes the boy doing would best demonstrate the primary developmental task of the preschool-age child, according to erikson?

The 4-year-old-son may exhibit tantrums, signs of stubbornness and negativism. These all demonstrate the second phase of psychosocial development by Erik Erikson.

Explanation:

According to Erikson, the socialization process consists of eight phases:

1. Learning Basic Trust Versus Basic Mistrust (Hope)

2. Learning Autonomy Versus Shame (Will)  

3. Learning Initiative Versus Guilt (Purpose)  

4. Industry Versus Inferiority (Competence)

5. Learning Identity Versus Identity Diffusion (Fidelity)

6. Learning Intimacy Versus Isolation (Love)  

7. Learning Generativity Versus Self-Absorption (Care)  

8. Integrity Versus Despair (Wisdom)

the answer to your question is sperm

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.