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BIS 2B FINAL EXAM (PART I) WITH 100% CORRECT ANSWERS .
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BIS 2B FINAL EXAM (PART I) WITH 100% CORRECT ANSWERS . Community - Correct Answer: set of species in a particular place Ecosystem - Correct Answer: all species and their abiotic environment in a place Biological evolution - Correct Answer: change in the properties of populations over th...

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  • August 27, 2024
  • 11
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bis 2b final exam
  • bis 2b final exam part i with 100 correct answe

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BIS 2B FINAL EXAM (PART I) WITH 100%
CORRECT ANSWERS 2024-2025.
Community - Correct Answer: set of species in a particular place

Ecosystem - Correct Answer: all species and their abiotic environment in a place

Biological evolution - Correct Answer: change in the properties of populations over the course of
generations caused by descent with modification

Natural selection - Correct Answer: process that produces adaptations from differential reproductive
success among organisms in same populations

Stabilizing selection - Correct Answer: favors and preserves average characteristics
- decreases variance

Phenotypic plasticity - Correct Answer: environmental effects on phenotypic variation

Biome - Correct Answer: environment that is defined by its climatic and geographic attributes

Rhizobia - Correct Answer: bacteria fixes nitrogen for the plant

Myorrhizae - Correct Answer: expands plant roots for plant, brings food/water
- plant gives carbs (example of interspecies interaction & potentially parasitic)

Trade off - Correct Answer: relationship between the benefits and the costs of a trait in different
environments

Principle of Allocation - Correct Answer: all life functions can not be simultaneously maximized

Fundamental niche - Correct Answer: total range of environmental conditions that are suitable for a
species existence without effects of other species

Realized niche - Correct Answer: part of fundamental niche that a species actually occupies caused by
interactions with other species

Acclimatization - Correct Answer: relatively long term response by an organism to environmental change

Dispersion - Correct Answer: distribution of organisms in space at one moment in time

, clumped
random
uniform

Home range - Correct Answer: the area an animal normally lives

Cooperation - Correct Answer: interactions among individuals in which all benefit

Life cycle - Correct Answer: the entire span of stages in the life of an organism from the moment of
fertilization to the time it reproduces and dies

Reproductive value (Vx) - Correct Answer: age specific expectation of future reproduction

Competition - Correct Answer: process that occurs when individuals share resources that are in short
supply

Translocations - Correct Answer: exchange of segments between nonhomologous chromosomes

Heterozygous - Correct Answer: individual has different copies

Locus - Correct Answer: the site on the chromosome of a gene

Incomplete dominance - Correct Answer: when heterozygotes show a phenotype intermediate between
two homozygotes

Inbreeding - Correct Answer: a form of nonrandom mating in which individuals are more likely to mate
with relatives than with nonrelatives

Genetic drift - Correct Answer: random change in gene frequencies within populations caused by sampling
error

Heterozygosity - Correct Answer: the proportion of the population that is heterozygous

Gene flow - Correct Answer: movement of genotypes from one population to another

Character displacement - Correct Answer: when species differ more where they are together (sympatric)
than when they are alone (allopatric)

Predation - Correct Answer: when an animal eats another organism (+,-)

Coevolution - Correct Answer: when two or more species affect one another's evolution

Aposematic - Correct Answer: species that are brightly colored to advertise that they are harmful

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