Chromosome is to cactus as gene is to needle.
Your answer would be photosynthesis because photosynthesis synthesis carbon based energy molecules from chloroplast inside a cell, with the outer membrance.
hope i helped my fellow brainily user :)
HI Mate! The right answer is vascular tissue!
A. Migration (birds migraye to warmer climates during colder months)
Histamines are chemicals released by the body as an allergic response.They help the body by reacting when their are "intruders" so when enters, histamine acts as a messenger and sends out a signal for the body to create a reaction helping to get rid of teh intruder through some type of reaction.
