What happens when a specific substance binds to a carrier protein? The carrier protein changes shape and moves the substance through the cell membrane. The cell receives a signal to send a vesicle that shuttles the substance across the cell membrane. The substance breaks down into smaller particles, making it easier for the protein to transport the substance into the cell. The carrier protein secretes acid that helps dissolve the substance so that it can diffuse through the cell membrane.

Ascientist is studying muscle twitches in chicken quadriceps. to activate the muscle, he needs to provide stimulus to the

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Which type of respiration takes place when there is no oxygen present