Question

1. according to paragraph 7, we know that the phylogeny system-

a. groups organisms together into units called clades.
b. has phylogenetic or evolutionary trees and cladograms that demonstrate the same
pattern.
c. traces the relatedness of organisms according to their evolutionary history.
d. all of the above

1. what is the main aim of the study of systematics?

a. to calculate how many organisms there are on earth
b. to understand the evolutionary relationship of biological organisms
c. to create a naming system for biological organisms
d. none of the above

1. what do you call the system that categorizes organisms by using a naming system that

includes the genus and species?
a. dichotomous tree
b. phylogeny
c. cladistics
d. binomial nomenclature

Explanation:

Question 1

• Option A: Phylogeny system groups organisms into clades (a group of organisms with a common ancestor).
• Option B: Phylogenetic trees and cladograms in phylogeny show evolutionary patterns, often with the same underlying relationship representation.
• Option C: The core of phylogeny is tracing evolutionary relatedness. Since A, B, and C are correct, D is the answer.

• Option A: Systematics is not about counting organisms.
• Option B: Systematics focuses on understanding the evolutionary relationships between biological organisms.
• Option C: Naming systems (like binomial nomenclature) are part of taxonomy, not the main aim of systematics. So B is correct.

• Option A: Dichotomous tree is for identification, not naming with genus/species.
• Option B: Phylogeny is about evolutionary relationships, not naming.
• Option C: Cladistics is about clades, not naming.
• Option D: Binomial nomenclature is the system that names organisms with genus and species (e.g., Homo sapiens). So D is correct.

Answer:

D. All of the above

Question 2