Practical Salinity Units Are Based Upon

question 25

Multiple Choice

Practical salinity units are based upon

• A) The conductivity of sea water
• B) The mass of salts found after evaporating a sea water sample
• C) The carbon content of sea water
• D) The chlorine plus calcium concentration of sea water

Grasp why presence of chloroplasts doesn't accurately suggest phylogenetic relationships.

Identify economic relevance of protists.

Explain how eukaryotic cells exchange materials with their environment and the implications for cellular functions.

Analyze evidence supporting the ease of multicellularity evolution.

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