Suppose you are using a microscope to look at the cell membranes from two plants. The cells appear identical. This means they are from the same plant.

it has one origin of replication, but it proceeds in two directions - d)

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

oxygen +1 most likely

the answer is cell division : )