Answer:
its called a membrane
Explanation:
its kind of like a cell wall
D because 60 out of 40 is white and the brown is dominant
HOPE I HELPED :)
Answer:
Water vascular system = Echinodermata
Tentacles with stinging cells= Cnidaria
Molting for growth= Arthropoda
Presence of mantle= Molluska
Explanation:
RNA Has Smaller Molecular mass (20,000 - 2,000,000) and DNA has Larger Molecular Mass 100,000 - 150,000,000). RNA can have Single or Double Helix, and DNA Always has Double Helix.
Answer:
Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity.
Explanation:
It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace amounts of other gases, and water vapor. This mixture of gases is commonly known as air.
