Natural selection
Darwin noticed this animals were born with random variations in neck length, that helped them to compete for food.
What are tortoises?
The marine mammals that have a terrestrial ancestor.
What are whales?
The process when all the population of a species dies and it no longer exists.
What is extinction?
The large object that impacts the surface of the Earth and could create a mass extinction
What is meteorite?
The organisms that can be genetically engineered to produce vaccines and antibiotics.
What are bacteria?
The structures with shape variations that helped birds to compete for food.
What are beaks?
The limbs that humans use for grabbing things and dogs use them for walking.
What are forelimbs?
The record that contains species that were unable to adapt.
What is fossil record?
The particular rate that if is less than the death rate over time, extinction results.
What is birth rate?
The label used for food that has been genetically engineered.
What are genetically modified organisms?
The process by which organisms with variations that help them survive in their environments, reproduce more than others.
What is natural selection?
The particular structures that birds and flies use for flying.
What are wings?
The range of organisms living in an area, that is reduced when a species become extinct.
What is biodiversity?
The most occurring extinctions (perhaps up to 95%) that occur as background throughout time.
What are background extinctions?
The organisms that are fight by BT corn crops by taking proteins from bacteria.
What are insects?
The characteristic that enables the species to survive in its environment.
What is adaptation?
The structures that pharyngeal pouches in fishes become when they grow.
What are gills?
The banks that scientists are using for trying to prevent species to become extinct.
What are gene banks?
The relatively sudden, global decrease in the diversity of life forms.
What is massive extinction?
The organism that causes rings in natural papayas.
What is virus?
The type of adaptations that involve chemical changes in body systems.
What are functional adaptations?
The study of gene structure and function, that has confirmed some knowledge about natural selection.
What is molecular biology?
The international union that ranks a species as extinct when there is no doubt that the last individual has died.
What is the International Union for the Conservation of Nature (IUCN)?
The mass extinction when dinosaurs disappeared.
What is Cretaceous-Tertiary (K-T)?
The meaning of taking a gene from one species to put it in another species.
What is transgenic?