1. Observations of the biogeographic distribution or organisms provided both Dar
ID: 216030 • Letter: 1
Question
1. Observations of the biogeographic distribution or organisms provided both Darwin and Wallace with Evidence for the occurrence of evolution. Which of the following was NOT part of the evidence used by Darwin to support his theory of descent with modification?
A. Organisms inhabiting similar climates are not necessarily related
B. physical barriers to dispersal often separate regions with very different groups of animals
C. Animals from different habitats on the same continents are more closely related to each other than they are to animals from similar habitats on different continenrs,
D. speies distributions are closely aligned with the movement of continents.
2. Which of the following is universal among organisms, implying that all living things derive from a common ancestor?
A. The genetic code
B. Basic metabolic reactions
C. Using homologous morphological traits to reveal shared ancestry
7. The mutations shown in the figure A below involve a transformation of one structure into another structure. What are these types of mutations called? A) homeotic mutations, B) transversions, C) synonymous mutations, D) inversions teg where tenn should be eshift mutations 1 bic h of the following is aExplanation / Answer
1. D. speies distributions are closely aligned with the movement of continents.
2. A. The genetic code
7. Homeotic mutation
Homeotic gene results in altered transcription, leading to the growth of legs on the head instead of antenna; this is known as the antennapedia mutation.
8.A. Continental drift theory
B. Glossopteris
C. Glossopteris present in the permian period (298 million years ago) but extinct in end of permian period. Now
fossils studies showing this plant distribution across different continent in the world. Due to this finding scientist propose a theory continental drift theory that the southern continents were once amalgamated into a single supercontinent—Pangea.
9. Range expansion followed by extinction and vicariance
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