Biology 1441 - Exam 1 - Spring 2025 – Karafit Questions
With Complete Solutions
Abiogenesis Correct Answers The formation of life from non-
living components.
Abiotic Synthesis of Organic Molecules Correct Answers What
is the first stage required for the origin of life?
Abundant Across Many Environments, Hard-Shelled, Has a
Skeleton Correct Answers What characteristics increase an
organism's chance of appearing in the fossil record?
Adaptation Correct Answers A trait inherited from an
organism's parents that helps survival in a specific environment.
Adaptive Radiation Correct Answers A lineage of a species
that rapidly diversifies due to opportunity.
Allele Correct Answers A variation on a gene.
Allopatric Speciation Correct Answers Gene flow is
interrupted due to geology.
Allopolyploidy Correct Answers Infertile hybrid polyploid that
reproduced asexually.
Analogous Traits Correct Answers Traits caused by convergent
evolution that appear to homologous but are not.
, Arthropods Correct Answers What were the first animals to
breach land?
Artificial Selection Correct Answers Humans intervene and
select specific traits to (hopefully) be passed on to the next
generation.
Atavism Correct Answers A vestigial trait that only occurs
within a few members of a species.
Autopolyploidy Correct Answers More than two sets of
chromosomes derived from the same species.
Bottleneck Effect Correct Answers A type of genetic drift that
occurs when a population suddenly looses a large portion of its
members, and the new allele frequencies do not match the
orignial.
Cambrian Explosion Correct Answers Lasted 10 million years,
all animal phyla accounted for here.
Carbon Dating Correct Answers Exploiting how carbon
isotopes decay predictably to determine the age of a sample
younger than 75,000 years old.
Carbon-12 Correct Answers What is the most common carbon
isotope in living things?
Cenozoic Correct Answers Marked by extinction of dinosaurs,
large mammals evolve, first hominids appear, contains the
Quaternary Period.
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