What could be inferred about atomic structure after the discovery of the electron?
Select all correct answers.
A. Atoms are made up of smaller "subatomic" particles,
B. Atoms of different elements contain the same number of electrons.
C. The electrons in an atom are attracted to each other due to their negative charge,
D. Atoms must also contain a positively charged component.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies