BIOL 152: Final Exam
37 Cards in this Set
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Bacteria have been classified based on
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metabolism
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When phospholipids and other molecules are placed into water, microspheres (primitive cells) form spontaneously. These microspheres are called.
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Coacervates
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Scientists believe that our atmosphere has progressively changed as some living organisms began to harness sunlight energy to split water molecules to form complex carbon molecules. This activity led to an increase in:
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Oxygen
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One big difference between spontaneous generation and prebiotic evolution is:
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Prebiotic evolution occurred over a long time
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An organism has just been located and needs to be placed into one of the domains of life. The characteristics that have been reported are multicellular and autotrophic. Based on your knowledge, in which domain should this organism be placed?
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Eukarya
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A system of statements and ideas that explain a group of facts or phenomena is called a:
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Theory
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The idea that each species consists of actually or potentially interbreeding individuals that are reproductively isolated from other such groups is called the:
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Biological species concept
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A systematist is constructing a phylogenetic tree for a group (clade) of animals. He/she has determined the shared derived characteristics which are:
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Inherited from the most recent ancestor
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A friend asks you the difference in kingdoms and domains. You respond:
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Domains are larger and more inclusive than kingdoms. There are three domains into which the six kingdoms can be divided
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Protists are classified into a single kingdom because of which of the following features:
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All of the following:
1. They are not fungi, plants, or animals
2. Most are microscopic, although some are as large as trees
3. Many are unicellular, but there are some colonial multicellular forms
4. All types of nutritional modes are formed
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A biologist who classifies and names organisms is called a
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Taxonomist
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The oldest fossils resemble modern
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Prokaryotes
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Some protists produce seed-like structures called
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Cysts
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The single characteristic that sets prokaryotes apart from all other organisms is
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The absence of a true nucleus
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A prediction or educated guess in science is called
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Hypothesis
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Biologists classify organisms based on
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Morphology, internal anatomy and DNA
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Structures which are derived from the same body part in a common ancestor but may have different appearances and functions are called
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Homologous structures
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Bacterial genetic resistance to antibiotics is most often carried
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In plasmids
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Cnidarians (jellyfish) use tiny barbed spears for protection and to capture prey called
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Nematocytes
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Angiosperms (flowering plants) may be divided into two groups the _____and the _____.
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Monocots and eudicots
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In developing animals, the ectoderm is the tissue layer that gives rise to:
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Skin
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Because all bryophytes lack specialized vascular systems, they depend on free-standing water for
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Photosynthesis and support
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The tissue in plants that consists of living cells that transport sugars and other organic molecules from the leaves to the rest of the plant is called
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Phloem
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“Cot” as in monocots and eudicots come from the word
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Cotyledon
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A biologist discovered a new animal. Upon studying embryonic development, she observed radial cleavage with the blastopore developing into an anus. This animal was categorized as a
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Deuterostoma
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The person that influenced Darwin concerning overpopulation and food production was
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Malthus
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The result of a small subset of a large population establishing a new population is called
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Founder effect
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Environmentalism (environmental concern) is
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Primarily a social concern that uses some of the ideas from ecology.
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The potential for social interactions among individuals would likely be maximized when individuals
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Have a clumped distribution in their environment
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The reduction of deleterious (harmful) alleles in the population is a process called
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Natural selection
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“K” as in rN(K-N/K) refers to
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Carrying capacity
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Paleontology is the study of
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Fossils
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Species formation by geographical separation is called_____speciation
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Allopatric
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Describing in precise mathematical terms the process by which genetic variation is generated and passed on within population is called
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Population genetics
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A continuous variable is one for which within the limits of the variable range, _____values are positive
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Any
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The single most important factor increasing genetic variability in a population is:
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The rate a mutagen spreads
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Good evidence for the theory of gradual evolution would come in the form of
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Fossil records of transitional forms between distinct species
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BIOL 152: Test 2