homologous chromosomes ... sister chromatids
Answer:
A carbon atom can form four covalent bonds, it also bonds with other carbon atoms to form long-chain molecules of different sizes and shapes.It's electronegativity on Pauling scale is 2.55 due to which when it bonds with elements like oxygen, hydrogen the bond formed is quite strong.
Explanation:
It protects ur toes and foot from dangerous germs like what u do in the bathroom.Also it prevents us from fungus by keeping our foot on the clean soul of ur shoe