The answer is a. hemoglobin is the molecule that transports oxygen in red blood cells :))))
i hope this is helpful
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Answer: B. Was twice as tall
Explanation: The strength of the gravitational force between two objects depends on two factors, mass and distance. If the distance is doubled, the force of gravity is one-fourth as strong as before.
Explanation:
magnesium + zinc oxide --> magnesium oxide + zinc
Mg + ZnO --> MgO + Zn
Reactants:
- Magnesium
- Zinc Oxide
Products:
- Magnesium oxide
- Zinc
Type of reaction: Displacement Reaction
Answer choice would be D, answer choice B, is the boxes net force. Velocity = distance/time. The correct answer is D. I hope this helps!
