Half Life Problems & Microscope Math
What is 10 mm converted to micro meters?
10,000 micro meters
What is evolution?
the change in a population's inherited traits over generations
What is a Niche vs. Habitat?
A habitat is the physical place an organism lives, like a forest or desert, while a niche is the organism's functional role within that habitat, including what it eats, its interactions, and how it affects its environment
What is binomial nomenclature?
A two-part scientific naming system using genus and species.
What is the difference between abiotic and biotic factors?
Biotic is living and Abiotic is non-living
What is a half life?
The time a substance takes for a quantity to reduce by half
What is a derived characteristic?
A trait shared by all members of a clade and only that clade
What are the 3 types of adaptations?
Structural, Behavioral, & Physiological
What is a density dependent factor?
Disease
What tool is used to determine evolutionary relationships?
Cladogram
A microscope has a 10x eyepiece and a 40x objective. What is the total magnification?
400x total magnification
What is morphology?
What type of adaptation is venom?
Physiological
What structural adaptation do ducks have for swimming?
Webbed feet
What does DNA evidence tell us about evolution?
It shows genetic similarities that indicate common ancestry.
How do you calculate different FOV's on a microscope.
Magnification 1 x Diameter 1 = Magnification 2 x Diameter 2
What is phyletic gradualism?
a type of evolution where new species develop over long periods of time
Name the six kingdoms?
Eubacteria, Archaebacteria, Protista, Fungi, Plantae, & Animalia
What kind of adaptation helps an organism blend in with its environment?
Camouflage
What are the 3 types of symbiosis?
Commensal, Parasitic, & Mutualistic
A certain radioisotope has a half-life of 9 days. What percentage of an initial mass of this isotope remains after 27 days?
12.5 %
Long periods of little change that are interrupted by speciation events, resulting in many species despite common ancestors
3 requirements to be an evolutionary adaptation?
- heritable
- functional for a specific environment (fitness)
- contribute to an advantage for that species
How does taxonomy help scientists understand evolution?
It shows relationships and common ancestry between organisms.
What does biodiversity mean and why is it important?
Variety of species in an ecosystem; it increases stability and resilience.