Theory of Evolution
Trending Questions
Q. What is Natural selection?
Q. Homologous organs have:
- Similar origin but different functions
- Similar origin and same function
- Different origin but same function
- Different origin and different functions
Q.
Evolution in nature takes place by the _________.
accumulation of all variations in a species
changes in the environment
accumulation of beneficial variations in species
- change in food pattern
Q.
Variations are raw materials for evolution because they ………………………
accumulate more changes in successive generations
adds more genes to the existing genetic material
removes defects in the species
develop changes in mitochondrial DNA synthesis in the cell
Q. Analogous organs have:
- Similar origin but different functions
- Similar origin and same function
- Different origin but same function
- Different origin and different functions
Q.
Fossil evidence in evolutionary studies explains that ________.
life is old and has changed over time
humans existed before plants
cells and tissues evolved from primitive organs
organic evolution took place before chemical evolution
Q. Charles Darwin is credited with
- The theory of natural selection
- Charles laws
- Galapagos island theory
- Theory of finches
Q. _______ is based on the idea that more the similarities in the DNA of the organisms, more closely they are related.
- DNA analysis
- Fossil analysis
- Molecular phylogeny
- Genetics
Q. Differences in characteristics within a species is called ______.
- evolution
- adaptation
- heredity
- variation
Q. The difference in characters between the organisms of same species is called .
- variation
- evolution
- speciation