Root nodules
You can also just find this on google
Answer:
Virus.
Explanation:
Viruses can't reproduce without invading the cell of another living being.
I believe the answer is B, primary active transport. Root hair cells in plant use active transport to absorb mineral ions such as nitrates from the soil. The concentrations of minerals in the soil are lower in the soil than in within the root hair cell, therefore the transport will be against the concentration gradient which does not favor diffusion, therefore the pant has to use active transport.
What is common in both unicellular and multicellular algae presence of chlorophyll for carrying out the process of photosynthesis.
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