In response to a stimulus, a brain cell called a neuron will send a signal to the brain

a. respiration and absorption
b. myosin and actin
c. electrical signals and chemical neurotransmitters
d. contraction and relaxation

What controls activities within a eukaryotic cell?

Which of the following situations describes a adaptation for a mole? question 2 options: a mole is blind and cannot see underground. a mole is bright and attracts the attention of predator birds. a mole has a sensitive sense of smell to it find food underground.

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees