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When adults with smartphones are randomly selected, 54% use them in meetings or classes (Based on data from a previous Smartphone survey).  If 10 adult smartphone users are randomly selected. Let X be the variable the number of adults that use smartphones in  meetings or classes in a sample of 10 adults with smartphone (Select all that apply)    

The a firm’s short-run cost curves shifts when there is a change in

Babies born in singleton births in the U.S. have weights that are approximately normally distributed with a mean 3.5 kg and standard deviation of 0.3 kg. Regarding this population: What is the probability of randomly selecting a baby weighing between 3 and 4 kg?

Which structure is necessary for bacterial conjugation  [a]A) a pilusB) a cell wallC) endosporesD) a capsuleE) flagella

What interactions exist:Between cellulose-digesting organisms in the gut of cow? [a]Between two rams butting heads to mate with a female? [b]Between fungal hyphae and plant roots? [c] A) +/+B) +/0C) +/-D) -/-

Terrestrial molluscs without shells [a]A) cephalopodsB) chitonsC) gastropodsD) bivalesE) apes

Nitrifying bacteria participate in the nitrogen cycle mainly by [a] A) converting nitrogen gas to ammoniaB) releasing ammonium from organic compounds, returning it to the soilC) converting ammonium to nitrate, which plants absorbD) incorporating nitrogen into amino acids and organic compounds

The discipline dedicated to returning degraded ecosystems to their natural state is. [a]A) landscape ecologyB) conservation ecologyC) restoration ecologyD) resource conservation

Mature firms usually raise capital by issuing new shares of common stock?

Males of one species are too small to stimulate ovulation of a females of another species, what is this referred as  [a]A) gametic isolationB) mechanical isolation C) temporal isolation D) behavioral isolationE) habitat isolation