Answer:
b. Hiccupping is a vestigial reflex that suggests a common ancestry between humans and amphibians.
Explanation:
Hiccupping refers to an involuntary contraction of the diaphragm that usually occurs several times per minute. Some research has suggested that hiccuping is an evolutionary remnant of amphibian respiration. This is because the mechanism is remarkably similar to the way tadpoles gulp air and water across their gills. This would mean that hiccups exist due to an antecedent to modern lung respiration.
Answer:
1.an atom that has gained or lost electrons:
2. produces OH - ions when added to water:
3. produces H† ions when added to water:
This question is faulty, it could either be A - starvation or B - growth
He predicted that humanity would overpopulate (growth) and lead to food supply shortage (starvation) best of luck!
B. being able to continue for a long time
Answer:
The concentration of a solution is the quantity of solute in a given quantity of solution.
Explanation:
There are two types of solution. Concentrated solution and dilute solution.
Concentrated solution is a type of solution in which quantity of solute is high while dilute solution is a type of solution in which solute quantity is low. Concentration of a substance is described in terms of molarity.
