Que animales no respiran por las branquias

What does it mean for a cell membrane to be selectively permable

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?

How does food concentration affect yeast activity