Victoria enjoys laughing with her friends as they walk around the track after school. which best describes their heart rates during this activity?

low
moderate
vigorous
dangerous

Anne is 60 years old and rather frail. she fractured her forearm while playing with her grandson. that was two months ago, but her arm is still in a sling. which disease is she likely suffering from?

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

Effective antiviral drugs are usually associated with which of the following properties? a) interference with viral replicationb) prevention of the host from becoming infectedc) removal of viral proteinsd) removal of viral mrnas