Eukaryotic cells are more complex than prokaryotic cells. They contain a nucleus and organelles. They are also enclosed by a plasma membrane.
Prokaryotic cells are less complex. They don't have any real nucleus, since the DNA isn't contained inside the membrane instead is coiled up the nucleoid.
Hope this helped :D
Explanation:
Excretion - Getting rid of
waste
Reproduction- The ability to
produce
offspring to
keep the
species in
existence.
Growth- The process
increasing
hysical
In the periodic table, the atomic radius of the atoms decrease from left to right. This means that Carbon is smaller than Boron. So from the choices you can rule out the first and third choice.
Now, the reason why Carbon is smaller than Boron is because Boron has more protons and as the protons increase it attracts the electrons closer, which makes the atom smaller.
Carbon has more protons, so it exerts a greater pull. The answer is then Option 2: Boron has a larger radius and the protons in carbon exert a greater pull.
As for the second question, a compound is defined as a substance that is made up of two DIFFERENT elements that are chemically bonded. If you look at the second option, it is a compound. It is made up of hydrogen and oxygen atoms.
The answer is then option 2.
