Bio1001 exam 1 - Bio 1001 Exam 1C Fall, 2010 Name_ Student...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Bio 1001 Exam 1C Fall, 2010 Name___________________________________ Student # (4 digits)_______________ 1) Which of the following statements concerning prokaryotic and eukaryotic cells is not correct? A) DNA, or deoxyribonucleic acid, is present in both prokaryotic cells and eukaryotic cells. B) Prokaryotic cells contain small membrane - enclosed organelles. C) Prokaryotic cells lack a membrane - bound nucleus. D) DNA or deoxyribonucleic acid is present in the nucleus of eukaryotic cells. E) Eukaryotic cells contain a membrane - bound nucleus. 2) A water sample from a hot thermal vent contained a single - celled organism that had a cell wall but lacked a nucleus. What is its most likely classification? A) Fungi B) Animalia C) Protista D) Eukarya E) Archaea 3) Which of the following must exist in a population before natural selection can act upon that population? A) Sexual reproduction B) Variation among individuals caused by environmental factors C) Genetic variation among individuals D) B and C only E) A, B, and C 4) In angiosperm plants, flower morphology can be very intricate. If a tree, such as a New Mexico locust, has flowers that share many morphological intricacies with flowers of the sweet pea vine, then the most likely explanation for these floral similarities is the same general explanation for the similarities between the A) dorsal fins of sharks and of dolphins. B) adaptations for flight in birds and adaptations for flight in bats. C) cranial bones of humans and those of chimpanzees. D) reduced eyes of Australian moles and North American moles. E) scales on moth wings and the scales of fish skin. The following questions refer to Figure 22.1, which shows an outcrop of sedimentary rock whose strata are labeled A - D. Figure 22.1 5) Which stratum should contain the greatest proportion of extinct organisms? 6) If "x" indicates the location of fossils of two closely related species, then fossils of their most - recent common ancestor are most likely to occur in which stratum? 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The following questions refer to the evolutionary tree in Figure 22.2 . The tree's horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species. Figure 22.2 7) Evolutionary trees such as this are properly understood by scientists to be A) laws. B) dogmas. C) theories. D) facts. E) hypotheses. 8) Which statement best describes the evolution of pesticide resistance in a population of insects? A) Insects observe the behavior of other insects that survive pesticide application, and adjust their own
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/20/2010 for the course BIO 1001 taught by Professor Larp during the Fall '09 term at CUNY Kingsborough.

Page1 / 10

Bio1001 exam 1 - Bio 1001 Exam 1C Fall, 2010 Name_ Student...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online