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Questions in biology

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

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

[Terjawab] 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

[Terjawab] 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.

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

[Terjawab] 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

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

[Terjawab] Is [blank] necessary for muscle function? 1) Iron 2) Potassium 3) Zinc 4) Phosphorus

[Terjawab] What type of environment does oil spill mainly affect? QUESTION 12 List two land-based sources of oil spill or leak. QUESTION 13 Animals living in

[Terjawab] In the double fertilization of angiosperms, one sperm cell fertilizes the egg cell. With which cell type does the second sperm fuse? A. Another egg cell B. The polar nuclei C. One of the synergids D. One of the antipodal cells