The image above illustrates the fates of the posterior daughters of P cells in C. elegans, some of which give rise to the vulva. Identify which cells are expected to express the let-23/EGFR, and explain why.

SKN-1 protein is maternally provided to unfertilized oocytes an is not asymmetrically localized. Yet, SKN-1 is only required for one of the four blastomeres present at the 4-cell stage shown above. A. (4 pts) Identify the blastomere whose fate depends on SKN-1 activity and Explain how activity of this maternally supplied SKN-1 protein becomes restricted to that blastomere. Be sure to include discussion of other key proteins. B. (2 pts) State and explain the phenotype that results from lack of SKN-1 protein.

Which factor accounts for the most variation in meeting a child’s total caloric needs?

A child who sustained a hard bump to their head and has unequal pupils should be treated for: 

Which statement about fat is true?

Asking families to transport groups of children for field trips can present serious legal problems for a program in the event of an accident.

Briefly explain teachers’ professional responsibility in the event that a child sustains a serious injury.

Which of these foods do not yield dietary fiber?

Name 2 common choking hazards for young children.

______ says that even though every event has a cause, at least some acts are free.