All algae
heterotrophs
autotrophs
parasitic
anaerobes

Autotrophs

Explanation: The algae contain chlorophyll that helps in the trapping the solar energy from the sun.

The solar energy is converted into chemical energy by the help of carbon dioxide present in the atmosphere and water present in soil.

The food synthesized is in the form of glucose. The process by  which the algae makes its own food is known as autotrophic mode of nutrition.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.