Which of the following describes a response to external stimuli?

a boy sneezes when exposed to cat dander

a girl eats food when she is hungry

a child becomes hyperactive due to a chemical imbalance

a person yawns when oxygen levels in the blood are low

Which is the best example of water regulating an organism's body temperature?

Match the term with its description. alkaline ion ph Acid A) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water B) A compound that increases the hydroxide ions (OH-) when it is dissolved in a

how would the kinetic energy of the ball in questions 4 charge if its mass were doubled if its speed were doubled

In response to boyle's law, the pressure of a gas increases as the volume decreases because

If you want to prepare 0.50 liters of a 0.35 M solution of NaNO3, how many grams of the salt should you weigh out?

When magma intrudes parallel to another rock layer, the formation is called a (n) A. sill. B. dike. C. extrusion. D. unconformity.

What is the net amount of energy released when 1 mole of H2O is produced

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

An element x forms an iodide (xi3) and a chloride (xcl3). the iodide is quantitatively converted to the chloride when it is heated in a stream of chlorine: 2xi3+3cl2â2xcl3+3i2 if 0.5500 g of xi3 is treated, 0.2596 g of xcl3 is obtained.

When you kick a soccer ball across a field it will eventually come to a stop. Does this prove or disprove Newton's first law of motion? It disproves Newton's first law of motion because gravity is stronger than friction.