Geologic Time
States that oldest rock layer is at the bottom and youngest at the top
superposition
Trait that HELPS an organism survive is called an
adaptation
Burning of fossil fuels causes too much __________ in the atmosphere which causes global warming
carbon dioxide or greenhouse gases
Carbohydrates are the body's main source of ______
Energy
A microscopic particle that invades or hijacks the cell
Virus
type of fossil that is just evidence of something once living ex. footprint
trace fossil
Change over a period of time is called
evolution
Plants take in carbon dioxide and water to make oxygen and __________ during photosynthesis
glucose
Which nutrient is responsible for building and repairing muscle and tissue
Protein
Type of medicine used to treat bacterial infections
Antibiotics
Type of fossil dating in which half life is used to determine exact age of fossil
absolute dating or radiometric dating
States that best adapted organisms survive and reproduce. Survival of the Fittest
Natural Selection
Process of removing all trees (bad for environment)
Deforestation
Type of Energy resource obtained from heat inside earth
geothermal
The living thing the virus or parasite gets in or on is the _________
host
What can scientist learn from studying ice cores
past climate
All living things are unique and different due to differences in their genes
Genetic Variation
process in which plants covert nitrogen to nitrate (the fix the nitrogen so plant can use it)
Type of Energy resources from plant and animal waste
Biomass
Use of living things (cells, DNA) to make a product or make life easier
Biotechnology
type of fossil used to date rock layers because it lived only a short time
index fossil
Similar bone structure of bat wing, dolphin and human arm suggest living things evolved from _______
common ancestor
During __________ _________animals take in glucose and oxygen to make energy and carbon dioxide.
cellular respiration
Substance that may cause cancer (ex. tobacco)
Carcinogen
Vector