Cells in the human eye send nerve impulses to the brain that cause the pupil to constrict. this an example of an example of a reaction to what kind of stimuli?

a. chemicals
b. light
c. touch
d. sound

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

The transport tubes from food came down the plant are called?

Jason, a dog breeder, decides to mate a poodle with a golden labrador retriever. he wants to get puppies with the curly hair of the poodle and the color of the labrador. what concept is shown in this example? question 6 options: artificial selection adaptation evolution natural selection