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Questions in biology

[Answered] Select the best answer for the question. Unlike swamps and marshes, bogs get most of their water from A. floodwater. B. precipitation. C. runoff. D. groundwater.

[Answered] Which of these is inorganic? A. bacteria B. earthworms C. minerals D. leaves

[Answered] The typical human hair is about 50 micrometers in diameter. That means it is 50 ________ of a meter. A. billionths B. thousandths C. parts D. millionths

[Answered] What do both Prokaryotes and Eukaryotes have in common? A. None of the above B. DNA C. Nucleus D. Organelles

[Answered] Which nutrient is changed by bacteria into different forms? A. water B. nitrogen C. carbon D. oxygen

[Answered] Which of the following is NOT a line of evidence supporting common ancestry and biological evolution? A. DNA sequence similarities B. Embryological development C. Fossil record D. Individual acquired traits

[Answered] A cross between white and yellow summer squash gave progeny of the following colors: | Color | White | Yellow | Green | | ------------------ | ----- | ------ | ----- | | Number of progeny | 155 | 40 | 10 | Are these data consistent with the 12:3:1 ratio predicted by a certain genetic model? Use the chi-square test at alpha [tex]$\alpha =0.05$[/tex]. (e) State your conclusion in plain terms. A. We reject [tex]$H _0$[/tex]. There is not enough reason to suspect the 12:3:1 ratio. B. We reject [tex]$H _0$[/tex]. There is enough reason to suspect the 12:3:1 ratio. C. We do NOT reject [tex]$H _0$[/tex]. There is not enough reason to suspect the 12:3:1 ratio. D. We do NOT reject [tex]$H _0$[/tex]. There is enough reason to suspect the 12:3:1 ratio.

[Answered] Starfish and sea urchins are 1) mollusks. 2) echinoderms. 3) arachnids. 4) annelids.

[Answered] Which of the following best describes natural selection? A. A random process with no impact on evolution B. A deliberate selection of traits by humans C. The survival and reproduction of organisms best suited to their environment D. The process by which individuals adapt within their lifetime

[Answered] The "seat of emotion" is to be found in the a. reticular formation. b. hindbrain. c. limbic system. d. forebrain.