Choose the CORRECT statement about cell transport below. O Diffusion moves particles across the cell membrane from areas of high concentration to
areas of low concentration
Osmosis moves oxygen and carbon dioxide across the cell membrane
Passive transport requires energy to move molecules across the cell membrane
O Osmosis is an example of active transport

Which of the four major uses is predicted to change the least by 2020?

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.

What is the ratio of carbon hydrogen and oxygen in a carbohydrate?