What system is it: regulating oxygen and carbon dioxide a circulatory system b repiratory system c muscular system d skeletal system e nervous system f digestive system g excretory system

What is the chance of two parents with blood types ab and o producing an offspring with blood type o a.0% b.25% c.75% d.50%

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

Photosynthesis converts solar energy into what type of energy?