Answer:
The answer to your question is: letter D
Explanation:
A. a motile archaea Archea don't have peroxisomes then this option is wrong.
B. a nonmotile eukaryote The new organism has flagella then it can move, so this option is wrong.
C. a motile bacterium Bacterium don't have peroxisomes so this option is wrong.
D. a motile eukaryote This is the correct option because an eukaryote can have all the characteristics described.
The answer is c. hydrogen is flammable and dangerous
The dissolving power of water is very important for life on Earth. Wherever water goes, it carries dissolved chemicals, minerals, and nutrients that are used to support living things. Because of their polarity, water molecules are strongly attracted to one another, which gives water a high surface tension
A + BC ---> AB + C
So here one reactant (A) is accepting a group which is being given by another compound (BC) however the A is not giving any group / element or ion
So this single displacement
Similarly in the given reaction
the anion OH- is only being replaced
The element Ca accepts OH- and H2O loses the same group to form new element H2
So the correct answer is
Single replacement also known as single displacement.