Answer:
14.to 17 hours of a 24 hour period . say the national sleep faoundation , some newbourn sleep up to 18.to 19 hours a day
Im not quite sure, but i believe its B. Acinar Cells_digesting carbohydrates
The independent variable is a variable that is affected by an experiment or another variable.
Red eyes are not gender specific and 100% of the offspring
would have red eyes would have red eyes if the gene were on autosome.
Explanation:
If the eye colour is not sex-linked and the traits are on the autosomes.
Genotype for male = XWY or XwY
Genotype for female = XWXW, XWXw. XwXw
Punnet square:
cross between red eye male and white eye male
XW Y
XW XWXW XWY
XW XWXW XWY all oofspring red eye
cross between white eye male and red eye female
Xw Y
XW XWXw XWY
Xw XwXw XwY 1 red male:1 white male: 1 red male : 1 white female
if mother has recessive gene all the male will be white eyed.
all the female progeny will have red eye because father had dominant red eye.
The red eye is dominant over white hence dominant trait will appear.
None of the provided options are reasonable. <span>comparing nutrient concentrations between the photic zone and the benthic zone can not tell you whether differences in concentrations between the photic and benthic zone are due to uptake by phytoplankton or because nutrients are sinking to the sea bottom and ocean stratification is preventing mixing. The approach of c</span><span>ontrasting nutrient uptake by autotrophs at different locations under different temperatures would not provide useful information on limiting nutrients. but rather uptake rates at different temperatures. It is likely that e</span>xperimentally enriching some areas of the ocean and compare their productivity to that of untreated areas can provide an indication of limiting nutrients, but this is not advisable, as it would have to be done on a large scale, and one cannot be sure of the ecological consequences. Also, because it would not be a controlled experiment, other factors could create 'noise' in the data. The last option, <span>observe antarctic ocean productivity from year to year to see if it changes, also does not help, as there is no correlation between nutrient concentrations using this approach. The best approaches would be either the last approach, but with the additional monitoring of nutrient concentrations, or under a controlled laboratory experiment.</span>