A rabbit was found to have floppy ear disease, which causes long-ear infections. Its etiology (cause) is unknown. Unknown Microo
rganism X from the infected rabbit’s right ear is successfully isolated and cultured on laboratory growth media. The ear of a healthy laboratory mouse is then inoculated with isolated microorganism, and after a period of time, no disease is observed. Which of the following statements accurately describe(s) the conclusion(s) that can be drawn from this experiment?Select all that apply.1.Microorganism X is the etiologic agent for floppy ear disease because it caused infection in the diseased rabbit.2.Healthy laboratory organisms rarely show signs and symptoms of infection and disease.3.It is not possible to isolate and culture microorganism X in the laboratory, because this microbe is found in nature.4.Microorganism X might not be linked to floppy ear disease, because the inoculated mouse remained healthy.5.Microorganism X modified its cell wall structure while being cultured, and is no longer infectious to rabbits.6.A laboratory mouse might not be an appropriate, susceptible host; an experiment with a laboratory rabbit may be needed.
Answer:.4.Microorganism X might not be linked to floppy ear disease, because the inoculated mouse remained healthy.5.Microorganism X modified its cell wall structure while being cultured, and is no longer infectious to rabbits.6.A laboratory mouse might not be an appropriate, susceptible host; an experiment with a laboratory rabbit may be needed.
From mud and clay to diamonds and coal, Earth’s crust is composed of igneous, metamorphic, and sedimentary rocks. The most abundant rocks in the crust are igneous, which are formed by the cooling of magma. Earth’s crust is rich in igneous rock s such as granite and basalt. Metamorphic rock s have undergone drastic changes due to heat and pressure.
She could have a better diet plan, like she could eat less junk food and more heathy food like fruits and vegetables. Also instead of sitting around all day she can go for a walk or going some sports.
