Fetal Development at week 5 is when the embryonic development begins
Answer: A
Explanation: Amoeba, Euglena and Paramoecium all belong to the kingdom Protista of gwhittaker’s 5 kingdom classification system. This kingdom includes all the unicellular eukaryotic organisms.
Answer:
21
Explanation:
Amino acids are the basic structural units of proteins. Our bodies contain 21 amino acids it uses to make all proteins, although books recognize only 20 amino acids. The 20 amino acids are the alphabet of proteins.
Answer:
Physical Weathering
Explanation:
Mechanical breakdown of rocks