C, or a tough layer of connective tissue surrounding a bone
Explanation:
Mainly in ecology all the living and non living things are include so water must be in ecology as it is non living thing
Answer:
Animal cell do not have cell wall hence Hector was right in his diagrams.
Explanation:
The animal cell does not have a cell wall, they only have cell membrane made up of phospholipid bilayer and proteins also they have well-defined cytoskeleton, microtubules which provide shape and mechanical strength to the cell.