Choose the correct answer. 1) The transfer of heat from one material to another through direct contact is .
a) radiation b) evaporation c) conduction d) convection

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

Will treating a viral infection with antibiotics affect the course of the infection? a) no; antibiotics work by inhibiting enzymes specific to bacteria. antibiotics have no effect on eukaryotic or virally encoded enzymes. b) no; antibiotics do not kill viruses because viruses do not have dna or rna. c) yes; antibiotics activate the immune system, and this decreases the severity of the infection. d) yes; antibiotics can prevent viral entry into the cell by binding to host-receptor proteins.

Which of the following is not a potential safety hazard to consider when organizing an early childhood outdoor space? a. proximity of restrooms b. nearby traffic patterns c. sun exposure d. standing water