What decisions should you make now about your future in the childcare field?

Which term defines one's age as measured by how well the body is working? chronological age biological age social age mental age

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer

What is the total amount of waste dissolved in the plasma and what chemical is it