Answer:
Oxygen for respiration and Carbon dioxide for photosynthesis
Explanation:
Answer:
undifferentiated; blood
Explanation:
Hematopoietic stem cells are undifferentiated cells that develop into blood cells.
Answer:
Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.
Explanation:
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