The atomic number of chlorine is 17. The atomic number of magnesium is 12. What is the formula for magnesium chloride?
A) MgCl
B) MgCl2
C) Mg2Cl
D) MgCl3
B
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The condition in which each chromosome is represented twice as a member of a homologous pair is called
____________________. Fill in the blank(s) with the appropriate word(s).
Angie wants to go with her boyfriend to a bar and drink some beer, but she does not want to become intoxicated because she needs to drive them both home after 2 hours. She weighs 120 pounds
What advice can you give her based on the information in the textbook?
The atmosphere of early Earth is currently thought to have contained:a
methane, water, ammonia, nitrogen, and oxygen b. carbon dioxide, water, oxygen, nitrogen, and hydrogen c. carbon dioxide, ozone, nitric oxide, water, and hydrogen sulfide d. carbon dioxide, water, carbon monoxide, hydrogen, and nitrogen e. carbon dioxide, carbon monoxide, water, hydrogen, and nitric oxide
If you had the ability to genetically engineer a pathogenic bacterium, what features would you include? Choose a portal of entry and a portal of exit for your pathogen. Then choose three virulence factors from at least two the following areas: toxins,
adhesins, invasins, acquisition of nutrients, and avoidance of the immune system, and describe how each factor will help your bacterium survive in the host. Your virulence factors should make sense for the portals of entry and exit that you chose. What will be an ideal response?