<span>Vegans must eat a combination of complete proteins to meet their nutritional needs.
-true </span>
Answer:a
Explanation: because blood is pumped out of the heart and into the body to supply oxygen to working muscles or to the lungs for re-oxygenation
Answer: The Preoperational Stage
Explanation:
This is the second stage in Piaget's cognitive development theory and it starts at age 2 through 7.
At this stage, children have learnt language and have learnt to think at a symbolic level but have not learnt how to think logically and are inept at manipulating representations like identifying, transforming, organizing and combining ideas. Due to the absence of logic in reasoning, there can be no abstract thinking
