Ryan Stapleton is a 20-year-old college student attending school in Colorado away from his home in Arizona. He is playingfootball with some of his friends in the park. He jumps up in the air to catch the football and is tackled by another player. Ryan flips in midair and feels something pop in his neck as he lands hard on the ground. He does not have any pain, but when he tries to get up, he cannot move his legs or arms. Ryan is alert and is talking to his friends. Safety and Infection ControlRyan’s friends are standing around him, unsure about what to do. They are afraid that he is badly hurt. Ryan thinks it is just a temporary sting and states that he will be all right in a few minutes. One of the men calls 911 on a cell phone.

1.What should Ryan 's friends do while waiting for emergency personnel to arrive?

A) Help Ryan move his legs and assist him to sit up.
B) Place a blanket over Ryan and make sure no one moves him.
C) Attempt to stabilize his neck with any type of soft material.
D) Carefully put Ryan in the back of a truck with one man holding his neck.
E) Ensure that the scene around Ryan is safe and that he is not in any immediate danger.

c is the correct answer hope this !

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!

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.