Answer:
A normal line
Explanation:
"In geometry, a normal is an object such as a line, ray, or vector that is perpendicular to a given object."
Hope this Helps
Answer:
where is the picture? I can't help you without the picture...
Answer:
you need to attach a photo.
Explanation:
Answer:
active transport
Explanation:
they are using energy to move across the membrane, using energy means its active Hope this helps