The principal organ of exchange between the mother and the developing organism is the placenta.
Earth worms are hermaphrodites they contain both male and female sex organs in same individual. If necessary then they can fertilize their own eggs/
Answer:
To attract pollinators.
That's why they're always such bright colours.
The correct answer is D.) The sun
The sun’s heat causes liquids to evaporate into water vapor, which rises and forms clouds. The whole water cycle repeats itself again because of the sun.
