LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do scientists generally find when comparing the relationship of living things in different geographic areas?
A
Species living further apart geographically typically share a more recent common ancestral species than those living closer together
B
Species living closer geographically typically share a more recent common ancestral species than those living further apart
C
The location of where an organism lives gives no insight into their evolutionary relationships to other species
D
Their protein sequences depend on the protein intake from the local watering hole.
Explanation: 

Detailed explanation-1: -When scientists compare animals currently living on different continents, they often find those with similar characteristics, who are not actually close relatives, living in similar environmental conditions even though they are geographically very distant.

Detailed explanation-2: -Similarities and differences between the “same” gene in different organisms (that is, a pair of homologous genes) can help us determine how closely related the organisms are.

Detailed explanation-3: -Molecular Biology Evidence of a common ancestor for all of life is reflected in the universality of DNA as the genetic material and in the near universality of the genetic code and the machinery of DNA replication and expression.

Detailed explanation-4: -Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.

Detailed explanation-5: -DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change.

There is 1 question to complete.