Evolution
What is gene flow?
The movement of alleles among populations by the migration of breeding individuals
What is the smallest and the largest group of classification?
Smallest: Species
Largest: Domain
Who said that species evolve with time and suggested that natural selection was the process by which they become adapted to their environment?
Charles Darwin
What is a possible reason for which the skull and the brain size increased?
More intelligence
"Evolution is the change in the gene pool of an organism over time"
FALSE!
"Evolution is the change in the gene pool of a POPULATION over time"
Gene flow tends to increase or decrease genetic variation?
If two organisms belong to the same genus, they are ____________ (more/ less) likely to be related to each other.
If two organisms belong to the same genus, they are MORE likely to be related to each other.
What are homologous structures
Structures that are similar found in different species. These structures are evidence of common ancestry
What type of peppered moths survived better during the industrial revolution?
The black peppered moths.
Which of the five factors of evolution results in adaptation to the environment?
Natural Selection
Due to genetic drift, the genetic variation _________________ in a population
Decreases
All of the following are characteristics shared by kingdom bacteria and kingdom archaea, except:
A. Prokaryotes
B. Unicellular
C. Autotrophs and Heterotrophs
D. Live in extreme environments
D. Only kingdom archaea can live in extreme environments such as salt lakes, volcanoes, etc.
What is the correct definition of natural selection?
What process happened first on Earth?
1. Photosynthesis
2. Cellular respiration (aerobic respiration)
1. Photosynthesis happened first due to cyanobacteria (simple type of bacteria that existed on Earth)
Evolution can only occur is there is some variation present among individuals of a population. What is a source of variation?
MUTATIONS
_________ ________ happens in small populations and refers to changes in allele frequencies due to a random change
Genetic drift
Based on the description, identify the kingdom
"Heterotrophs, made of eukaryotic cells, chitin cell walls, mostly multicellular with one exception"
Kingdom Fungi
What are two factors required for natural selection to happen?
Variation and an advantageous trait
True or False?
"The Miller Urey experiment showed evidence of how life started on Earth"
FALSE!
The Miller Urey experiment showed evidence of how amino acids were formed
What are the five factors that lead to Evolution?
Genetic Drift, non- random mating, mutations, gene flow and Natural Selection
What is gene flow and what happens to genetic variation in this situation?
Gene flow is the movement of genes from one population to another and genetic variation increases
Which characteristics are specific to the kingdom fungi compared to the kingdom plantae?
1. Heterotrophs
2. Autotrophs
3. Some decomposers and some are parasites
4. Multicellular
5. Eukaryotic
1. Heterotrophs
3. Some decomposers and some are parasites
Which out of these 3 structures is NOT evidence of common ancestry?
1. Vestigial Structures
2. Homologous Structures
3. Analogous Structures
Which of the following is an example of natural selection?
1. Bacteria cells changing their DNA to become antibiotic resistance
2. Individual insects changing their genetic makeup to become resistant against pesticides
3. Green beetles changing their color to orange to be better adapted to a sandy environment
4. Random mutations happening in a population of bacteria cells after many generations making bacteria cells antibiotic resistance
4. Random mutations happening in a population of bacteria cells after many generations making bacteria cells antibiotic resistance