Answer:
The correct answer is D.
Explanation:
The Amoeba Proteus example given in the question describing its engulfing smallar organism and digesting them is an example of a proces named "Phagocytosis". These cells are called phagocytes and the process can be used for both feeding purposes or defensive purposes by various cells. I hope this answer helps.
1, fact.
2, reasoned judgement.
3, opinion.
They discovered the structure, which is 2 nucleotide chains linked together to form a helix
