<span>Cell membranes are semipermeable allowing oxygen to pass through while charged ions cannot.</span>
Answer:
it is the last one
Explanation:
Isotopes are atoms that have the same number of protons but different numbers of neutrons. So B would not be correct...
Answer:
The blood travels back to the heart to get oxygen.
Answer:
The somatic nervous system is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles.
Explanation:
Answer:
I believe the answer is water in a stream
Explanation: