While jessica, ashley, and bryan are snowboarding, they ignore warning signs indicating that they have left the marked trail and are entering dangerous territory where they become lost. while climbing the mountain as part of the rescue effort, a snowplow accidentally cuts a nearby town's main electrical cable. due to the loss of her electric heat, ethel, an elderly woman, dies of hypothermia. the boarders' negligence in ignoring the warning signs is: a. not the cause of ethel’s death. b. the proximate cause of ethel’s death. c. the causation in fact, but not the proximate cause, of ethel’s death. d. the superseding cause of ethel’s death.

Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.b) the viral genome codes for specialized enzymes not in the host.c) the virus infects only those cells and species that can perform all the replication roles necessary.d) viruses can stay in a quiescent state until the host cell evolves this ability.

How do psychologists their patients control feelings of anxiety?

The pituitary gland is controlled by sex hormones true or false.