The atomic number is consider a unique atom and element identifier. describe the associated subatomic particle, and how it can be used to identify the atom. a) the number of electrons changes in a unique way as the charge on the atom changes. b) the proton number remains constant through changing the atomic charge, energy, and isotopes. c) as the atom absorbs photons the way the photons interact in the nucleus gives the atomic number. d) all isotopes of the an element have the same number of neutrons allowing it to describe the unique atom.

the denominator has a very specific role.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.