Answer:
They don't reproduce independantly but have to invade other cells.
Explanation:
Answer: Leu (leucine)
Explanation: The mRNA code for a DNA strand of AAT is UUA. The amino acid that UUA codes for is Leu, short for leucine (I don't know if you need the full name of it).
Answer:
Nitrogen is removed from the atmosphere mainly by nitrogen-fixing bacteria in the soil and oceans (blue-green algae).
Explanation:
Nitrogen is removed from the atmosphere mainly by nitrogen-fixing bacteria in the soil and oceans (blue-green algae).
Answer:
element Y and Z
Explanation:
Having on valence electron indicates that these elements are on the same column/group of the periodic table. Both these elements will bond with a -1 charge.