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Luda [366]
4 years ago
9

Red blood cells _____.

Biology
2 answers:
Sophie [7]4 years ago
8 0
Carry oxygen im typing this because i have to have 20 characters
Simora [160]4 years ago
6 0

Answer:

last one

Explanation:

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Students investigate how soil pH affects the height of tomato plants. Each of six tomato plants receives the same amount of
nirvana33 [79]

Answer:

The height to which to tomato plants grow

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According to this question, students investigate how soil pH affects the height of tomato plants. The different pH each plant receives is the independent variable while the HEIGHT OF THE PLANTS that responds to the soil pH or that is measured by the students is the DEPENDENT VARIABLE.

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