In two or more complete sentences, explain the responses of vomiting and fever. Be sure to state the stimuli that cause the response, and the purpose of the response. Which of the following is responsible for homeostasis on a cellular level?

pituitary gland
hypothalamus
cell membrane
nucleus

Which of the following statements is true?

The hypothalamus links the nervous system to the endocrine system.
Positive feedback occurs when the output of a system is reduced or stopped.
Negative feedback describes an undesired homeostatic response.
Sweating is an example of positive feedback.

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

Emmet didn’t want to weed the garden. he put off the task toward the end of the day. he even tried to get his sister to do the job. what type of goal orientation did emmet display toward weeding the garden?

Which statement best compares aerobic and anaerobic respiration