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Bio quizzes combined
Terms in this set (29)
An organism that relies on other organisms as food is called
Taxonomically, ________________ is more specific, while ________________ is more broad.
A protist belongs in which domain
An endemic species is found
Only in one place
Which of the following is one of the three major causes of biodiversity loss?
Relative abundance of species is synonymous with all forms of biodiversity
- biodiversity is richness AND evenness
The theory of evolution is supported only by fossil evidence
- Fossil evidence
- Experimental studies
Evolution is best described as
Changes in gene allele frequencies within populations over time
_______ is required for evolution to occur
A new mutation or existing genetic variation
- Characterized by low light levels
- Organisms in this zone deal with high pressure
- Nutrients are limited
Often found around 30 degrees North and South
- Characterized by low precipitation
- Warm daily temperatures
- Sparse plant life
Characterized by flowing water
Water velocity is important
Found from 30-50 degrees North and South
High soil fertility (high nutrient density)
Characterized by warm summers with regular precipitation and cold, dry winters
Dominant vegetation is grass
Fire and grazing are important for maintaining the biome
Found between 10 degrees N and S (near the equator)
Characterized by high levels of precipitation
Soils are typically poor (low nutrient density)
Abundant plant life, dominated by large broadleaved evergreen trees and deciduous trees
Density-dependent growth is the same as exponential growth.
- logistic growth
The difference between exponential and logistic growth is that
Carrying capacity is used to slow the growth rate of a population
A plant produces beautiful red flowers that are pollinated exclusively by a species of moth called the charcoal nighthawk. The moth receives access to energy-rich nectar in exchange for pollinating the plant. The relationship is:
Nt=N0ert is a rate equation.
- Rate: rN=dN/dt
An interaction classified as a -/+ interaction could be:
Herbivore, Parasitism, Predation, Competition
A rank abundance plot allows you to compare the type of species in a community
- it allows you to measure the abundance of species in a community
In comparing three communities, you learn that community 1 has an H value of 2.78, community 2 has an H value of 1.58, and community 3 has an H value of 1.7. Which of the following is correct?
Community 1 is the most diverse
The process by which organisms move into space cleared by a disturbance
Both the total number of species and the relative abundance of each species
Primary succession occurs after complete removal of biomass from an area
A proportion of energy converted to sugar by primary producers is lost as heat, resulting in energy loss at each level of a food chain
Gross primary productivity is always less than net primary productivity.
Nutrients are cycled through ecosystems while energy flows in one direction.
An organism that consumes a primary producer is called a secondary consumer.
- Called a primary consumer
The highest rates of NPP in the ocean are at the equator.
- Found in algae beds and coral reefs
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