Answer:
petals are colorful because the color attracts birds, bees and other insects. The insects land in the flower and spread pollen, which helps fertilize the flowers and create seeds. Some flowers change color as they grow older.
Answer:
that depends on what you were testing for but is it always good for it to come up negative for any diseases
Explanation:
Protein channels + no energy spent + following concentration gradient = passive transport via facilitated diffusion :)
