For breakfast, Joni drank a cup of orange juice fortified with calcium One cup of orange juice contains 100 kcal and has 250 mg of calcium What is the nutrient density of this orange juice per kcalorie?
a. 35 milligrams per kcalorie
b. 250 milligrams per kcalorie
c. 3.5 milligrams per kcalorie
d. 2.5 milligrams per kcalorie
Oe 25 milligrams per kcalorie

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?

Por qué crees que los huevos con cáscara se llaman amnióticos?