The endosymbiotic theory is supported by the work
of __________ on bacteria-infected Amoeba proteus.
a. Stanley Miller
b. Jeon Kwang
c. Thomas Brock
d. Lynn Margulis
e. Australian researchers
Answer: b
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Answer the following statements true (T) or false (F)
1. Molecular homologies indicate that living species evolved from a common ancestor or interrelated group of common ancestors. 2. Selective breeding results from programs designed to modify traits in domesticated species. 3. According to Thomas Malthus, food supplies tend to increase arithmetically while populations tend to increase exponentially, which means that populations will outgrow their food supply. 4. Neutral variation is supported by the observation that most changes in codons occur in the third position within the codon, which often has no effect on the sequence of amino acids in the protein.
If you identify a plant as Magnolia grandiflora, then you would also know that this plant is:
a. the nearest living relative of all angiosperms. b. a core angiosperm. c. a dicot. d. a monocot. e. a eudicot.
What is the main reason that the tundra does not have large plants?
A) the permafrost persists, even during the summer B) the amount of rainfall is not enough for large plants to survive C) the other species of plants have outcompeted them for resources D) the amount of sunlight is not great enough for large plants to survive E) the seeds of large plants were never dispersed into these regions
Which of the following is the correct order for the four main stages of mitosis?
A. prophase, anaphase, metaphase, telophase B. metaphase, telophase, prophase, anaphase C. prophase, metaphase, anaphase, telophase D. anaphase, prophase, metaphase, telophase