Ithink the answer is c but not sure. can someone tell me their thoughts on matter?
the elderly can have impaired immune systems, making them susceptible to infections that can take longer to heal. which of the following would be most in preventing these types of illnesses in the elderly?
older people should avoid exercise so that their bodies are not exposed to stress.
older people should regularly take antibiotics to prevent development of infection.
older people should be vaccinated for common viruses like the flu virus.
older people should consume large amounts of protein to boost their immune system.

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Iwill mark brainliest and all that sha-bang. what is the function of the endocrine system? a. control longer term response in the body. b. transmit messages throughout the body. c. remove waste from the body. d. all of the above