A Beaker is a laboratory tool used to measure exact measurements of water
Answer:
prevents secretion of upper air passage
Explanation:
to prevent foods and drinks from falling down the airway which is called aspiration and may lead to pneumonia
Answer:
Mass does not affect gravity and distance has an indirect relationship.
Explanation:
The equation for gravity is, g = 
where, G = gravitational constant
M = mass of the planet
R = distance between the bodies (object and center of planet)
so, gravity depends on the mass of planet, not on mass of object
and is inversely proportional to sqaure of distance.
Answer:
Mammals
Explanation:
Mammals are a large group of animals that can be subdivided into multiple species, more than fish and insects. I cannot be D because plants are not animalia