Hi! I'd love some clarification on this question

Which of the following are NOT used to classify kingdoms of organisms?

a. complexity of the organism
b. invertebrate or vertebrate
c. method of obtaining nutrition
d. type of cell that makes up the organism
I'm thinking B?

Actually, I'm thinking it's A now?

I agree with A.

http://www.ric.edu/faculty/ptiskus/six_kingdoms/

Yes, you are correct. Option B, "invertebrate or vertebrate," is NOT used to classify kingdoms of organisms.

To arrive at this answer, we need to understand the traditional hierarchical classification system used in biology. Organisms are classified into different groups based on various characteristics and criteria, such as their structural features, evolutionary relationships, and mode of nutrition.

Let's examine each option to see why they are or are not used to classify kingdoms:

a. Complexity of the organism: This criterion is used to classify organisms to some extent. In the traditional classification system, organisms are grouped based on their levels of complexity, from simpler organisms (such as bacteria) to more complex organisms (such as animals). However, it's important to note that complexity alone is not the sole determining factor for classifying kingdoms.

b. Invertebrate or vertebrate: This option is NOT used to classify kingdoms. Invertebrates and vertebrates are terms used to describe specific groups of animals based on the presence or absence of a backbone (or vertebral column). The classification of organisms into kingdoms is not solely based on whether they are invertebrates or vertebrates. It's worth noting that kingdoms encompass much broader categories and include organisms other than animals.

c. Method of obtaining nutrition: This criterion is used to classify organisms into different kingdoms. The way organisms obtain nutrition is a crucial factor in their classification. For example, plants are classified into the kingdom Plantae because they use photosynthesis to produce their own food, while animals are classified into the kingdom Animalia because they ingest and digest other organisms for nutrition.

d. Type of cell that makes up the organism: This criterion is also used to classify organisms into different kingdoms. Organisms are classified into prokaryotes (organisms with cells lacking a nucleus) and eukaryotes (organisms with cells containing a nucleus). The kingdoms Monera and Archaea consist of prokaryotic organisms, while the remaining kingdoms (Protista, Fungi, Plantae, and Animalia) are comprised of eukaryotic organisms.

In conclusion, option B, "invertebrate or vertebrate," is NOT used to classify kingdoms of organisms.

Thank you so much!