Which is true about free energy and matter?
A - They need to be recycled through the Earth
B - All are correct
C - They are required by all living things
D - They affect all tropic levels
E - They get stored in our bodies temporarily
Answer: B - All are correct
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Requirements of Biological Systems
- What best describes homeostasis?
- Why is negative feedback not a negative process?
- What is the term for an error in a feedback system?
- Which hormone is responsible for signaling the storage of blood glucose?
- During birth, pressure from a baby's head triggers contraction, which push the baby creating more pressure, which triggers more contractions. This is an example of which type of feedback?
- What best describes homeostasis?
- What is an important reason that cells need to maintain homeostasis?
- What is the barrier that protects a cell from its external environment?
- What do endotherms do?
- What is diffusion?
- Why is photosynthesis an important process?
- What is likely the most important factor for life on Earth?
- What important thing do autotrophs do?
- What best describes photosynthesis?