Biology /
USABO
/ /
Exam Questions With Correct Answers
/ // // // //
The //recent //SARS //virus //is //a: //- //verified //answer(s)-✔✔Coronavirus
Which /
/of /
/the /
/following /
/cell /
/organelles //is //typically //identified //by //its //sedimentation //coefficient? //- //verified //answer(s)-
✔✔Ribosome
Timber //companies //plant //trees //right //after //clear-
cutting. /
/Which /
/of /
/the /
/following /
/ecological /
/and/or /
/evolutionary /
/processes //would, //in //principle, //take //too //long //for //timber //companies //to //wait //for, //if //nature
//just //took //its //course? //- //verified //answer(s)-✔✔Succession
Bird //migration //is //probably //initiated //by //the //effect //of: //- //verified //answer(s)-
✔✔Changes //in //duration //of //darkness //on //endocrine //glands
,Calico /
/cats /
/are /
/always /
/female /
/and /
/have /
/multiple /
/patches //of //differently //colored //fur. //This //phenomenon //is //caused //by: //- //verified //answer(s)-
✔✔Random //X-chromosome //inactivation
Which //of //these //statements //about //plant //hormones //is //correct? //- //verified //answer(s)-
✔✔Ethylene //is //a //gas //that //plays //a //role //in //senescence
In //general, //parasites //tend //to //- //verified //answer(s)-✔✔be //only //mildly //pathogenic
The //main //function //of //the //sinus //glands //of //lobsters //is: //- //verified //answer(s)-✔✔endocrine
Of /
/the /
/following /
/parts //of //the //vertebrate //nephron, //which //consists //of //capillaries? //- //verified //answer(s)-
✔✔Glomerulus
The /
/Gram /
/stain /
/is /
/one /
/of /
/the /
/major /
/tools /
, /used /
/in /
/the /
/classification /
/of /
/bacteria. /
/Which /
/of //the //following //statements //is //NOT //true //regarding //the //Gram //stain? //- //verified //answer(s)-
✔✔A //gram-positive //bacterium //has //a //periplasmic //layer
11) /
/The /
/carbon /
/atom /
/is /
/one /
/of /
/the /
/most /
/important /
/atoms /
/in /
/organic /
/molecules. /
/The //carbon //atom //has //all //of //the //following //properties //EXCEPT: //- //verified //answer(s)-
✔✔C //can //only //form //single //or //double //bonds
Carnivory /
/in /
/some /
/plants /
/appears /
/to /
/have //evolved //to //compensate //for //soil //that //is //relatively //deficient //in: //- //verified //answer(s)-
✔✔Nitrogen
USABO
/ /
Exam Questions With Correct Answers
/ // // // //
The //recent //SARS //virus //is //a: //- //verified //answer(s)-✔✔Coronavirus
Which /
/of /
/the /
/following /
/cell /
/organelles //is //typically //identified //by //its //sedimentation //coefficient? //- //verified //answer(s)-
✔✔Ribosome
Timber //companies //plant //trees //right //after //clear-
cutting. /
/Which /
/of /
/the /
/following /
/ecological /
/and/or /
/evolutionary /
/processes //would, //in //principle, //take //too //long //for //timber //companies //to //wait //for, //if //nature
//just //took //its //course? //- //verified //answer(s)-✔✔Succession
Bird //migration //is //probably //initiated //by //the //effect //of: //- //verified //answer(s)-
✔✔Changes //in //duration //of //darkness //on //endocrine //glands
,Calico /
/cats /
/are /
/always /
/female /
/and /
/have /
/multiple /
/patches //of //differently //colored //fur. //This //phenomenon //is //caused //by: //- //verified //answer(s)-
✔✔Random //X-chromosome //inactivation
Which //of //these //statements //about //plant //hormones //is //correct? //- //verified //answer(s)-
✔✔Ethylene //is //a //gas //that //plays //a //role //in //senescence
In //general, //parasites //tend //to //- //verified //answer(s)-✔✔be //only //mildly //pathogenic
The //main //function //of //the //sinus //glands //of //lobsters //is: //- //verified //answer(s)-✔✔endocrine
Of /
/the /
/following /
/parts //of //the //vertebrate //nephron, //which //consists //of //capillaries? //- //verified //answer(s)-
✔✔Glomerulus
The /
/Gram /
/stain /
/is /
/one /
/of /
/the /
/major /
/tools /
, /used /
/in /
/the /
/classification /
/of /
/bacteria. /
/Which /
/of //the //following //statements //is //NOT //true //regarding //the //Gram //stain? //- //verified //answer(s)-
✔✔A //gram-positive //bacterium //has //a //periplasmic //layer
11) /
/The /
/carbon /
/atom /
/is /
/one /
/of /
/the /
/most /
/important /
/atoms /
/in /
/organic /
/molecules. /
/The //carbon //atom //has //all //of //the //following //properties //EXCEPT: //- //verified //answer(s)-
✔✔C //can //only //form //single //or //double //bonds
Carnivory /
/in /
/some /
/plants /
/appears /
/to /
/have //evolved //to //compensate //for //soil //that //is //relatively //deficient //in: //- //verified //answer(s)-
✔✔Nitrogen
