Answer:
True
- The aorta pumps out blood from the heart to the rest of the body.
Answer:
A carbon atom can form up to four covalent bonds as one carbon atom has four valence electrons (in outermost shell). It is a fact that the number of valence electrons in a atom determines the number of covalent bonds it will form. Thus, each electron in carbon atom is used to form four covalent bonds with various four atoms.
Explanation:
A bond between a carbon and hydrogen atom is a non-polar covalent bond. The non-polar covalent bond are the bonds between two atoms which share equal number of electron(s) with each other. Example: as in case of methane, where one carbon atom shares its 4 outer valence electrons with four hydrogens by sharing equal number of electron.
In contrast, polar covalant bond are the bonds between two atoms which share unequal number of electron(s) with each other. Thus these bonds are partially ionic.
Answer:
flagella and cillia
Explanation:
Two different kinds of appendages may be found on eukaryotic cells that enable them to move. Flagella are long slender locomotor appendages that are usually single and few in number, whereas cillia are appendages which are numerous and short.
Hope this was helpful
