Bree Wakefield is a 19-year-old college student, living in a dormitory on the campus of her university. She started to feel poorly and began to miss classes. She went to the student health center and was immediately referred to the hospital. She was diagnosed with a disease of the CNS - these are her symptoms: ● Fever
● Stiff neck
● Drowsiness
● Vomiting
● Severe headache
● Rash
● Light sensitivity
● Beginning stages of kidney failure

Depending on what's causing your fever, additional fever signs and symptoms may include:

Sweating.

Chills and shivering.

Headache.

Muscle aches.

Loss of appetite.

Irritability.

Dehydration.

General weakness.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!