Pre test which I failed whats the real answers'; biology';?

I will have to take this test again next week but the trick is I dont know what I got wrong????





1. Which phrase below best completes the following statement concerning the biological species concept? ';Two organisms are of the same species if they _____.'; (Points: 5)


can successfully interbreed, produce reproducing offspring, and do so under natural conditions


can successfully interbreed and produce reproducing offspring


can successfully interbreed


are clones








2. Natural selection favors those members of a population that are _____. (Points: 5)


physically the strongest members of the population


larger than others in the population


best adapted to the current conditions in an ecosystem


most specialized in their requirements








3. Which of the following is the correct taxonomic specification for human beings? (Points: 5)


Homo Sapiens


Homo sapiens


homo sapiens


homo Sapiens








4. The DNA of prokaryotes is _____. (Points: 5)


enclosed in a nucleus


a single, circular chromosome


located in the mitochondria


enveloped in the chloroplast








5. Viruses are non-living particles made up of _____. (Points: 5)


carbohydrates and lipids


cellulose and pectin


protein and glycogen


protein and nucleic acid








6. Fungi _____. (Points: 5)


make organic matter by photosynthesis


digest food externally and then absorb the nutrients


are motile in at least one stage of life


lack cell walls








7. Features which appear in all members of Phylum Chordata in some phase of the life cycle include all of the following EXCEPT FOR: (Points: 5)


a tail


vertebrae


pharyngeal pouches


dorsal nerve cord








8. A fruit is _____. (Points: 5)


a seed


an embryo sporophyte


a cotyledon


a mature ovary, with or without floral parts that have been incorporated into it








9. Which of the following acts to increase the surface area of a root for absorption of water and minerals? (Points: 5)


root hairs


the endodermis


root nodule bacteria


lenticels








10. Water is carried throughout the plant in which tissue? (Points: 5)


cortex


xylem


cambium


phloem








11. Which of the following traits is not characteristic of arthropods? (Points: 5)


segmentation


jointed appendages


cephalization


radial symmetry








12. Gametes are produced in the ______ of human males and in the _____ of human females. (Points: 5)


vas deferens; oviducts


testes; ovaries


prostate gland; ovaries


testes; uterus








13. _____ tissue has closely linked cells and one free surface. (Points: 5)


Epithelial


Muscle


Connective


Nervous








14. What is the major function of capillaries? (Points: 5)


transport and maintenance of blood volume


transport and maintenance of blood pressure


production of blood cell elements


diffusion and distribution of blood-borne materials to deeper tissues








15. Which part of the brain maintains homeostasis of the body by interacting with the endocrine system by way of the pituitary gland? (Points: 5)


cerebrum


hypothalamus


cerebellum


medulla oblongata








16. Which of the following causes the greatest loss to biodiversity. (Points: 5)


disease


overexploitation


habitat loss


pollution








17. Which of the following conditions are most important in determining the specific biome which develops in a region? (Points: 5)


topography and temperature


precipitation and temperature


latitude and precipitation


temperature and latitude








18. _____ populations consist of organisms which use sunlight for energy and carbon dioxide as a carbon source. (Points: 5)


photoheterotroph


photoautotroph


chemoheterotroph


chemoautotroph








19. _____ is a relationship between two species of organisms in which both benefit from the association. (Points: 5)


Parasitism


Mutualism


Commensalism


Predation








20. The maximum number of organisms in a population of an ecosystem that can be supported is called its _____. (Points: 5)


saturation level


J-curve


carrying capacity


climax communityPre test which I failed whats the real answers'; biology';?
1)can successfully interbreed and produce reproducing offspring.





2)best adapted to curent conditions in an ecosystem





3)Homo sapiens





4)a single,circular chromosome





5)protein and nucleic acid





6)digest food externally and then absorb the nutrients





7)vertebrae(bcoz it is the charecteristic of only one sub phyla of chordata ie sub phylum vertebrata)





8)a mature ovary





9)root hairs





10)xylem





11)radial symmetry (charecteristic of phyllum echinodermata)





12)testes,ovaries





13)epithilial (outermost layer so definately one surface will be exposed )





14)diffussion and distribution....





15)hypothalamus





16)habitat loss





17)topography and temp..





18)photoautotroph





19)mutualism





20)carrying capacityPre test which I failed whats the real answers'; biology';?
You would actually learn them if you looked them up, and I have no idea of the guy above me is right or not, but I would still look them up
Usually when people don't know the answers, they look them up and study.
1. Which phrase below best completes the following statement concerning the biological species concept? ';Two organisms are of the same species if they _____.'; (Points: 5)


can successfully interbreed, produce reproducing offspring, and do so under natural conditions








2. Natural selection favors those members of a population that are _____. (Points: 5)


best adapted to the current conditions in an ecosystem











3. Which of the following is the correct taxonomic specification for human beings? (Points: 5)


Homo sapiens








4. The DNA of prokaryotes is _____. (Points: 5)


a single, circular chromosome








5. Viruses are non-living particles made up of _____. (Points: 5)


protein and nucleic acid








6. Fungi _____. (Points: 5)


digest food externally and then absorb the nutrients














7. Features which appear in all members of Phylum Chordata in some phase of the life cycle include all of the following EXCEPT FOR: (Points: 5)


a tail


vertebrae


pharyngeal pouches


dorsal nerve cord








8. A fruit is _____. (Points: 5)


a mature ovary, with or without floral parts that have been incorporated into it








9. Which of the following acts to increase the surface area of a root for absorption of water and minerals? (Points: 5)


root hairs











10. Water is carried throughout the plant in which tissue? (Points: 5)


phloem








11. Which of the following traits is not characteristic of arthropods? (Points: 5)


segmentation


jointed appendages


cephalization


radial symmetry








12. Gametes are produced in the ______ of human males and in the _____ of human females. (Points: 5)


testes; ovaries











13. _____ tissue has closely linked cells and one free surface. (Points: 5)


Epithelial


Muscle


Connective


Nervous








14. What is the major function of capillaries? (Points: 5)


diffusion and distribution of blood-borne materials to deeper tissues








15. Which part of the brain maintains homeostasis of the body by interacting with the endocrine system by way of the pituitary gland? (Points: 5)


hypothalamus











16. Which of the following causes the greatest loss to biodiversity. (Points: 5)


habitat loss











17. Which of the following conditions are most important in determining the specific biome which develops in a region? (Points: 5)


topography and temperature


precipitation and temperature











18. _____ populations consist of organisms which use sunlight for energy and carbon dioxide as a carbon source. (Points: 5)


photoautotroph











19. _____ is a relationship between two species of organisms in which both benefit from the association. (Points: 5)


Mutualism











20. The maximum number of organisms in a population of an ecosystem that can be supported is called its _____. (Points: 5)


carrying capacity
I will have to take this test again next week but the trick is I dont know what I got wrong????





1. Which phrase below best completes the following statement concerning the biological species concept? ';Two organisms are of the same species if they _____.'; (Points: 5)


can successfully interbreed, produce reproducing offspring, and do so under natural conditions


ANSWER..飥燾an successfully interbreed and produce reproducing offspring


can successfully interbreed


are clones








2. Natural selection favors those members of a population that are _____. (Points: 5)


physically the strongest members of the population


larger than others in the population


ANSWER ..best adapted to the current conditions in an ecosystem


most specialized in their requirements








3. Which of the following is the correct taxonomic specification for human beings? (Points: 5)


Homo Sapiens


ANSWER ..Homo sapiens


homo sapiens


homo Sapiens








4. The DNA of prokaryotes is _____. (Points: 5)


enclosed in a nucleus


ANSWER ..a single, circular chromosome


located in the mitochondria


enveloped in the chloroplast








5. Viruses are non-living particles made up of _____. (Points: 5)


carbohydrates and lipids


cellulose and pectin


protein and glycogen


ANSWER ..protein and nucleic acid








6. Fungi _____. (Points: 5)


make organic matter by photosynthesis


ANSWER ..digest food externally and then absorb the nutrients


are motile in at least one stage of life


lack cell walls








7. Features which appear in all members of Phylum Chordata in some phase of the life cycle include all of the following EXCEPT FOR: (Points: 5)


a tail


vertebrae


pharyngeal pouches


ANSWER dorsal nerve cord








8. A fruit is _____. (Points: 5)


a seed


an embryo sporophyte


a cotyledon


ANSWER a mature ovary, with or without floral parts that have been incorporated into it








9. Which of the following acts to increase the surface area of a root for absorption of water and minerals? (Points: 5)


ANSWER root hairs


the endodermis


root nodule bacteria


lenticels








10. Water is carried throughout the plant in which tissue? (Points: 5)


cortex


ANSWER xylem


cambium


phloem








11. Which of the following traits is not characteristic of arthropods? (Points: 5)


segmentation


jointed appendages


cephalization


ANSWER radial symmetry








12. Gametes are produced in the ______ of human males and in the _____ of human females. (Points: 5)


vas deferens; oviducts


ANSWER testes; ovaries


prostate gland; ovaries


testes; uterus








13. _____ tissue has closely linked cells and one free surface. (Points: 5)


ANSWER Epithelial


Muscle


Connective


Nervous








14. What is the major function of capillaries? (Points: 5)


transport and maintenance of blood volume


transport and maintenance of blood pressure


production of blood cell elements


ANSWER diffusion and distribution of blood-borne materials to deeper tissues








15. Which part of the brain maintains homeostasis of the body by interacting with the endocrine system by way of the pituitary gland? (Points: 5)


cerebrum


ANSWER hypothalamus


cerebellum


medulla oblongata








16. Which of the following causes the greatest loss to biodiversity. (Points: 5)


disease


overexploitation


ANSWER habitat loss


pollution








17. Which of the following conditions are most important in determining the specific biome which develops in a region? (Points: 5)


topography and temperature


precipitation and temperature


ANSWER latitude and precipitation


temperature and latitude








18. _____ populations consist of organisms which use sunlight for energy and carbon dioxide as a carbon source. (Points: 5)


photoheterotroph


ANSWER photoautotroph


chemoheterotroph


chemoautotroph








19. _____ is a relationship between two species of organisms in which both benefit from the association. (Points: 5)


Parasitism


ANSWER Mutualism


Commensalism


Predation








20. The maximum number of organisms in a population of an ecosystem that can be supported is called its _____. (Points: 5)


saturation level


J-curve


ANSWER carrying capacity


climax community





Be a part of discussion panel If Are you concerned with overgrowing population in the world?.I presume you have interest in biological science and good knowledge too. So I invite you to series of lectures being scheduled LIVE on wiziq.com by DR. BISWAS. It鈥檚 free for everyone to participate in discussions share your knowledge. The lectures will be at 7.00 PM (IST). You can register a day before or at least an hour before the lecture. Welcome to Biological world. Shall love to see you there LIVE.


Why not stop population?..20Th July


We Still Evolving ? 24th July


Food factories of nature..27th July


How plants grow and move 31st July


Good luck