Endangered and Extinct
Extinct organisms can be related to these types of organisms
Living or Extinct
Any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint, etc.
Fossil
This causes diversity among species
MUTATIONS
The name of the mice living in the Sonora desert that have rapidly evolved due to environmental change
The ability of populations of bacteria to develop resistance to antibiotics is an example of this
NATURAL SELECTION
This can cause the extinction of a species
ENV. CHANGE/LOSS OF FOOD/DISEASE
These were the first type of organisms on the Earth according to the fossil record
SINGLE-CELLED ORGANISMS (BACTERIA/SIMPLE FUNGI)
Quality that affords organisms the ability to hide
CAMOUFLAGE
The peppered moth evolved quickly due to this environmental change that occurred in England
Pollution (soot) from factory stacks coating the mostly white birch trees
These changes are sometimes helpful, sometimes harmful, and sometimes neither for a species
MUTATIONS
These large events resulted in new life forms on Earth
Mass Extinctions
fossils can tell us about these changes on the Earth
ENVIRONMENTAL/CLIMATE CHANGE
All species that have this quality gives them a better chance at survival
VARIATION
Whales have evolved over millions of years. Did they evolve from sea mammals to land mammals or from land mammals to sea mammals?
Land mammals to sea mammals
Three factors that provide evidence for the theory of evolution
DNA, FOSSILS, FOSSIL LAYERS, EMBRYOS, AND HOMOLOGOUS STRUCTURES
Threatened with extinction
Endangered
Law that states that organisms found in deeper, undisturbed rock layers are older
LAW OF SUPERPOSITION
Any alteration in the structure or function of an organism or any of its parts that results from natural selection and by which the organism becomes better fitted to survive and multiply in its environment.
ADAPTATIONS
Explain why over 40% of female African elephants are tuskless.
Due to strong poaching during two civil wars, many elephants with tusks (mostly male) were killed. Those without tusks (mainly females) survived long enough to reproduce and pass on the trait of being tuskless increasing the percentage of African elephants without tusks.
Charles Darwin developed his theories after studying many organisms. He based much of his theory of natural selection on this species.
FINCHES ON THE GALAPAGOS ISLANDS
Two of the extinct species fossils you identified
TRILOBITE, AMMONITE, BONY FISH, DINOSAURS
The common names of two of the extinct fossil species you observed in class
Ammonite, Trilobite, Bony Fish, Megalodon, (Amber)
Species that have favorable qualities survive long enough to reproduce- this is known as...
SURVIVAL OF THE FITTEST
What is a drill core and how does it aid us in understanding evolution?
Drill cores are cylindrical sample of rock, ice, or sediment that contains earth's layers and the history of life within them. We can use them to understand earth's climate, the history of life on earth, and past environments.
Genetic mutations occur during this process
REPRODUCTION