Questions: Organisms that feed on dead organisms for nutrients are called Multiple Choice parasites. phototrophs. saprobes. autotrophs. lithoautotrophs.

The answer is the third one: saprobes.

Explanation for each option:

1. Parasites: These organisms feed on living hosts, often causing harm to them. They do not feed on dead organisms, so this option is incorrect.

2. Phototrophs: These organisms obtain energy from light, typically through photosynthesis. They do not feed on dead organisms, so this option is incorrect.

3. Saprobes: These organisms, also known as saprophytes or decomposers, feed on dead or decaying organic matter. They play a crucial role in breaking down and recycling nutrients in ecosystems. This option is correct.

4. Autotrophs: These organisms produce their own food from inorganic substances, typically through photosynthesis or chemosynthesis. They do not feed on dead organisms, so this option is incorrect.

5. Lithoautotrophs: These are a type of autotroph that obtain energy from the oxidation of inorganic compounds. They do not feed on dead organisms, so this option is incorrect.

In summary, saprobes are the organisms that feed on dead organisms for nutrients.