Half Life Problems & Microscope Math
Cladograms & Evolution
Populations & Ecology (graphs)
Taxonomy & Adaptations
Misc.
100
What's the half life of 14C?
5730 years
100
What is a clade?
A clade is a group of organisims all derived from a recent common ancestor.
100
In a food web, algae, grasses, and trees are all __________.
Producers.
100
What is a physiological adaptation?
It is an adaptation related to biochemistry, and interactions within the body.
100
What is meiosis?
The process of sexual reproduction for the sake of increased genetic variation.
200
An isotope has a half life of 20 years, if Tom has 2,000,000 of these atoms in 1995, how many will he have in 2015?
1,000,000.
200
According to the cladogram, which of the following species is the most recent common ancestor to Species A and Species E?
Species F.
200
An organism's role in its community is its __________, and where it lives is its _________.
Niche, Habitat.
200
What type of adaptation is sweating?
Physiological Adaptation.
200
What examples of Eugenics exist today?
White/ Racial Supremacy, harmful stereotypes about a racial group's intelligence based on eugenic ideals, the continuation of scientific racism.
300
If the diameter of a microscope is 4.5mm at 40x, what is the diameter at 100x?
1.8mm or 1800µm.
300
Derived characteristics have all members of a clade possessing what?
A shared trait of all members of a clade.
300
What is the difference between survivorship graphs and growth curves?
Growth curves is increases while survivorship decreases.
300
Which of the following taxonomic groups is the most specific: Class, Phylum, Family, Order?
Family
300
What is a large sagittal crest associated with?
Powerful biting, a strong jaw, and a diet requiring the two.
400
If a specimen occupies 1/3 the field of view at 400x, how large is the specimen?
.45mm or 450µm
400
What is one of the 3 criteria for an evolutionary adaptation?
Heritable(passable to the next generation), fits a niche, increase the organism’s fitness.
400
What is the symbiotic relationship between Silverfish bugs that live and hunt with army ants, sharing the prey?
Mutualism.
400
The organisms of what kingdom possess these traits?- Eukaryotic cells- Photosynthetic- Cellulose cell walls.
Plantae.
400
If a population of organisms is growing, but has a carrying capacity, what kind of growth does this represent?
Logistic Growth.
500
The half-life of strontium-90 is 28 years. If a certain amount is absorbed into the bones due to exposure to a nuclear explosion, what percentage will remain after 84 years?
12.5%
500
What is punctuated equilibrium?
Evolution with long periods of little change that are interrupted with speciation events.
500
What are the 4 ways to describe a population?
Density and distribution, geographical range, growth rate, and age structure.
500
What are the kingdoms?
Archaebacteria, Eubacteria, Animalia, Protista, Plantae, Fungi.
500
In what order of continents did humans migrate to?
Africa, Asia, Australia, Europe, N. America, S. America.