#Question id: 27375
#Unit 1. Molecules and their Interaction Relevant to Biology
An atom of sodium has an atomic number of 11 and a mass number of 23. Which of the following statements is correct?
#Question id: 11337
#Unit 10. Ecological Principles
In which of the following biomes would we expect to find permafrost?
#Question id: 9053
#Unit 9. Diversity of Life Forms
Which of the following might be an investigation of microclimate?
#Question id: 1287
#Unit 4. Cell Communication and Cell Signaling
Biological roles of proteoglycans and hyaluronan include all of the following, except:
#Question id: 5325
#Unit 8. Inheritance Biology
Cystic fibrosis is caused by a recessive lethal gene and can be detected by an excess concentration of chloride in sweat. A normal man whose sister has cystic fibrosis, his normal wife whose brother has cystic fibrosis. What is chance of cystic fibrosis in their child?