Definitions
Species that are no longer alive, or have any living members
Extinct
A group of fossils that has been analyzed and arranged chronologically and based on species type
Fossil Record
A plant's roots are growing towards a body of water. What is this called?
Hydrotropism
What adaptation allows a chameleon to survive in its natural habitat?
Camouflage
Preserved remains or traces of organisms that lived in the past
Fossils
Fossils have been able to be preserved in what substances?
Ice and Amber
Give me 2 examples of an inherited trait and an acquired trait
Inherited Trait:
Freckles, eye/hair color, innate instincts (for animals)
Acquired Trait:
Learning how to ride a bike, learning a new language
Geotropism
Traits that are passed down from one generation to the next.
Inherited traits
Circadian Rhythm
True or False: The older the fossil, the closer to the surface it is.
False
What best describes a homologous structure?
Similar structure, different function
A plant in Mrs. Griffin's house grows toward the window due to the sunlight. This is an example of what?
When the pesticide DDT was first used to get rid of insects in wetland areas, it killed nearly every mosquito it touched. Within a few years, however, many mosquitoes became resistant to DDT and survived. What enabled this to happen?
Mutations
Phototropism
What part of an animals remains is most likely to be fossilized?
Teeth and bones
A cricket population includes about the same number of black and light-brown crickets. Black crickets are easier for birds to locate and eat. Over time, the cricket population begins to consist of only light-brown crickets. The dissapearance of the black color is a result of-
Natural Selection
Any inherited characteristic that increases an organisms chance of surviving.
Adaptation
A farmer only grows one type of tomato plant. All their tomato plants died from the same disease. What was most likely true of the tomato plant population?
The tomato plants had little variation in their genes
Dormancy
When an animal is unable to adapt to their environment, what happens to their species?
They become extinct
Why do owls have different sizes and shaped talons?
To hunt and survive
Quills on a porcupine allow it defend itself from predators. The quills are an example of an
Adaption
All dogs evolved from the grey wolf. This is a sign of...
Common ancestry