The only one correct answer would be:
c. Yellow or red hues in the soil indicate the presence of iron or aluminum.
Krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus<span>.</span>
Answer:
i think the answer would be D
2009 is the year that the population of zebras and lions is the highest
The defecation reflex involves two postive feedback loops. these loops are the stretch receptors in the rectal walls and the sacral parasympathetic system. Defecation reflex empties the rectum by peristaltic movements push fecal matter from the sigmoid colon into the rectum. Then this distension of the rectal walls stimulates stretch receptors which results in defecation.
