Certain fish species use bioluminescence as a form of "night light". Some use it for communication. Certain species of crustaceans send out coded signals to others of their own kind during mating season. Other creatures use bioluminescence as a trap.
Answer:
SUNLIGHT
Explanation:
The sun energy into chemical energy which is calptured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.
The answer that would best complete the given statement above would be the term PHASE. Here is the complete statement. <span>A homogeneous portion of a mixture that is characterized by uniform properties and capable of being separated by mechanical means is called a PHASE. Hope this helps.</span>
The element that has the smallest atomic radius is <u>titanium</u>
<em><u>explanation</u></em>
- Calcium,potassium, scandium and titanium are in period 4 in the periodic table.
- Generally the atomic radius decreases across the period (from the left to the right) . This is because across the period there is increase in nuclear charge which make electrons been strongly attracted to the nuclear.
- Titanium is in atomic number 22 thus it has more nuclear charge that calcium,potassium and scandium therefore titanium has the smallest atomic radius.
Mass number is the sum of protons and neutrons inside an atom.
Atomic mass = no. of protons + no. of neutrons
