Answer:
In the human body, cells are the basic units of life. Groups of cells working together for a specific function form tissues. Organs are two or more tissues operating together. Even separate organs work together, forming body systems.
Answer: The ones that live on land their entire life cycle are human, rats, and pigeon.
Humans can not breath under water at all we can hold our breath. Rats do not breath under water but they can hold their breath for long pireds of time. Pigeons can not hold or breath under water.
Answer:
B
Explanation:
Heat moves from warm to cold so that means that C and D are eliminated. Conductors cause heat to move quickly thus melting the ice faster.