Natural Selection
Natural Selection is the survival of the ___________?
fittest
The purpose of selective breeding is to
A.) Get bigger animals
B.) get smaller animals
C.) create organisms with desirable traits
D.) create animals with bad traits
C.) Create organisms with favorable traits
What does GMO stand for?
Genetically Modified Organism
Which of the following is an example of genetic variation?
A) One child is older than another.
B) One child eats meat and the other is a vegetarian.
C) One child has blue eyes and the other has brown eyes.
D) One child has a scar and the other does not.
C) One child has blue eyes and the other has brown eyes.
Organisms whose genetic material (DNA) has been modified by adding or removing genes
Genetically Modified Organism (GMO)
Over time of heavy use of pesticides what adaptions may insects gain.
Pesticide resistance
The evolution of dogs from wolves is due to what process?
artificial selection
What animal has been genetically engineered to grow faster, becoming the first animal to be modified specially for human consumption?
Salmon
Which of the following is true about natural selection?
A) It acts on existing heritable variation.
B) It can cause an individual to become better adapted over its lifetime.
C) It means that certain species have a programmed plan for evolution.
D) It always results in bigger, stronger individuals.
A.) It acts on existing heritable variation.
The deliberate modification of the characteristics of an organism by manipulating its genetic material.
Genetic engineering
True or False: Evolution by natural selection works best on a population having no variation
False
True or False: Thoroughbred racehorses are one example of artificial selection of animals.
True
What country does not require labeling of GMO foods?
USA
Which of the following would best determine whether two plant species shared a recent common ancestor?
A) Habitat distribution.
B) DNA sequences.
C) Stem lengths.
D) Flowering times.
B.) DNA sequences
Type of selective breeding when specific traits are deliberately selected for or against by humans
Artificial Selection
This naturalist is credited with the theory of natural selection.
Charles Darwin
Artificial Selection is a form of selection in which __________ actively choose which traits should be passed onto offspring.
Humans
True or False: The World Health Organization has stated its opposition to GMOs, citing genetically modified products as hazardous to human health?
False
The WHO does not oppose GMOs. According to the WHO, “No effects on human health have been shown as a result of the consumption of such foods by the general population in the countries where they have been approved.”
What contributed to the adaptive radiation of mammals?
Mass extinction of most dionsaurs
The process whereby organisms better adapted to their environment tend to survive and produce more offspring.
Natural Selection
What must be present in a population in order for natural selection to occur?
Variation
Artificial selection is a type of ________________?
Selective breeding
Name one pro of GMO foods
insect resistance, higher yield, drought/freeze resistance, lead to sustainable agriculture, better for farmers, etc.
Horseshoe crabs have changed little in structure from the time they first showed up in the fossil record. Which pattern of evolution do horseshoe crabs likely follow?
Punctuated equilibrium
Process of change by which descendants come to differ from their ancestors
Evolution