Because when salt dissolves, it makes the water more dense, and things float better on a denser surface.
Answer: A
Explanation:
Both C4 and CAM have certain adaptations - like spatial or temporal differences that allow photosynthesis to occur in plants that live in very hot, dry environments where woter loss would be bad.
Physical arousal can facilitate passionate love. It is a naturally occurring and deeply embedded trait found within the DNA of living organisms. The purpose of such is the need to propagate the species in order to ensure its survival in the long run of evolution.
Answer:
a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some which can cause disease.