Which of the following statements is true?a) All algae are photosynthetic and parasiticb) Algae are either photosynthetic, heterotrophic or parasiticc) Algae are either heterotrophic or parasiticd) There are no parasitic algae
Question
Which of the following statements is true?a) All algae are photosynthetic and parasiticb) Algae are either photosynthetic, heterotrophic or parasiticc) Algae are either heterotrophic or parasiticd) There are no parasitic algae
Solution
The correct statement is b) Algae are either photosynthetic, heterotrophic or parasitic.
Here's why:
a) All algae are photosynthetic and parasitic - This is not true. While many algae are photosynthetic, not all are parasitic.
b) Algae are either photosynthetic, heterotrophic or parasitic - This is true. Algae can be photosynthetic (making their own food from sunlight), heterotrophic (relying on organic substances for nutrition), or parasitic (relying on a host for nutrition).
c) Algae are either heterotrophic or parasitic - This is not true. Many algae are photosynthetic.
d) There are no parasitic algae - This is not true. Some algae are indeed parasitic.
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