Question

which domain includes living things such as humans and animals?
a) eukarya
b) bacteria
c) archaea
d) protozoa

Explanation:

To determine the domain including humans and animals, we analyze each option:

• Option A (Eukarya): Eukarya includes all organisms with eukaryotic cells, which have a nucleus and membrane - bound organelles. Humans, animals, plants, fungi, and protists are part of Eukarya.
• Option B (Bacteria): Bacteria are prokaryotic organisms (lack a nucleus) and are mainly single - celled microbes like E. coli, not complex organisms like humans and animals.
• Option C (Archaea): Archaea are also prokaryotic and are often found in extreme environments (e.g., hot springs), and do not include humans or animals.
• Option D (Protozoa): Protozoa are a type of single - celled eukaryotic organisms (like amoebas) and are not the domain that encompasses multicellular organisms like humans and animals.

Answer:

A) Eukarya