*blank* are similar in physical features in organisms that share a common ancestor, but the features serve different functions Analogous structures

Vestigial structures

Homologous structures

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

they kick it to the curb.

explanation:

that current was nasty.

mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. weight is the measure of the force of gravity on an objects's mass, while mass is the measure of how much matter there is in an object.