Multiple choice

Which is the primary food and energy source for animals?

  1. Fungi

  2. Micro-organisms

  3. Phytoplankton

  4. Plants
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plants are primary producers that convert solar energy into chemical energy through photosynthesis, forming the base of most terrestrial food webs. Animals directly or indirectly rely on plants as their primary source of food and energy. While phytoplankton serve this role in aquatic environments, plants are the general primary source for the animal kingdom as a whole in standard curriculum contexts.

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