enzyme activity, cell to cell recognition, cell signalling, transporting materials
Viruses are actually smaller than bacteria but they're not bacteria. So D is wrong.
Viruses don't grow and aren't made of cells, and despite being able to reproduce, they're not living. So C is correct.
As for the other two, I'm not entirely sure what they mean but C is the answer.
Quite simple really.... The CNS actually doesn't receive as much nutrients or key components from the blood... The blood actually dumps it into the Cerebrospinal fluid. The Cerebrospinal fluid therefore is directly in contact with the brain and if you want to find an infection you take from a source as close to thing as you can.
Answer:
The answer is B!
Explanation:
I know this because if the family was using less renwwable resourses it wouldn't be a problem. And if the family was causing less fertlizer to enter the water, that would be helping. So would causing fewer trees to be cut down. So it is all about the process of elimination! Hope I could help
Ribosomes are small particles that consist of RNA and associated with proteins that function to synthesize proteins. Proteins are needed for important cellular functions such as repairing damage or directing chemical processes. The nucleus is important for controlling gene expression and meditating the replication of DNA during the cell cycle. Hope this helps ;)
