Test 1 21. The early atmosphere lacked oxygen, the consequence of this was (were): The lack of ozone layer and an increase in ultra violet radiation. 22. Bacteria have been classified based on? Metabolism 23. When phospholipids and other molecules are placed into water, microspheres (primitive cells) form spontaneously. These microspheres are called. Coacervates 24. 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: Oxygen 25. One big difference between spontaneous generation and prebiotic evolution is: Prebiotic evolution occurred over a long time. 26. 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? Eukarya 28. A system of statements and ideas that explain a group of facts or phenomena is called a: Theory 29. The idea that each species consists of actually or potentially interbreeding individuals that are reproductively isolated from other such groups is called the: Biological species concept 30. A systematist is constructing a phylogenetic tree for a group (clade) of animals. He/she has determined the shared derived characteristics which are: Inherited from the most recent ancestor 31. A friend asks you the difference in kingdoms and domains. You respond: Domains are larger and more inclusive than kingdoms. There are three domains into which the six kingdoms can be divided 32. Protists are classified into a single kingdom because of which of the following features: All of the following: They are not fungi, plants, or animals Most are microscopic, although some are as large as trees Many are unicellular, but there are some colonial multicellular forms All types of nutritional modes are formed 33. A biologist who classifies and names organisms is called a Taxonomist 34. The oldest fossils resemble modern Prokaryotes 35. Some protists produce seed-like structures called Cysts 36. The single characteristic that sets prokaryotes apart from all other organisms is The absence of a true nucleus 37. A prediction or educated guess in science is called Hypothesis 38. Biologists classify organisms based on Morphology, internal anatomy and DNA 39. Structures which are derived from the same body part in a common ancestor but may have different appearances and functions are called Homologous structures 40. Bacterial genetic resistance to antibiotics is most often carried In plasmids Test 2 21. Cnidarians (jellyfish) use tiny barbed spears for protection and to capture prey called: Nematocytes 22. Angiosperms (flowering plants) may be divided into two groups the _____and the _____. Monocots and eudicots 23. In developing animals, the ectoderm is the tissue layer that gives rise to: Skin 24. Because all bryophytes lack specialized vascular systems, they depend on free-standing water for Photosynthesis and support 25. 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 Phloem 26. ?Cot? as in monocots and eudicots come from the word Cotyledon 27. 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 Deuterostoma Test 3 14. The person that influenced Darwin concerning overpopulation and food production was Malthus 15. The result of a small subset of a large population establishing a new population is called Founder effect 16. Environmentalism (environmental concern) is Primarily a social concern that uses some of the ideas from ecology. 17. The potential for social interactions among individuals would likely be maximized when individuals Have a clumped distribution in their environment 18. The reduction of deleterious (harmful) alleles in the population is a process called Natural selection 19. ?K? as in rN(K-N/K) refers to Carrying capacity 20. Paleontology is the study of Fossils 27. Species formation by geographical separation is called_____speciation Allopatric 28. Describing in precise mathematical terms the process by which genetic variation is generated and passed on within population is called Population genetics 29. A continuous variable is one for which within the limits of the variable range, _____values are positive Any 30. The single most important factor increasing genetic variability in a population is: The rate a mutagen spreads 31. Good evidence for the theory of gradual evolution would come in the form of Fossil records of transitional forms between distinct species.
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