One of the following is not true

Explanation

The correct answer is A. Explanation: This Biology question is asking which statement is not true. The options provide four different statements about nutrition and symbiotic relationships. Option A states that saprophytic nutrition involves feeding on soluble organic material from inorganic substances, and this statement is true. Saprophytes are organisms that obtain their food by feeding on dead and decaying organic matter. They secrete enzymes that break down the organic matter into simpler substances, which they absorb and use for their own nutrition. Option B states that symbiosis is a nutritional relationship in which both organisms involved derive benefit. This statement is also true. Symbiosis is a close and long-term interaction between two different species, and it can be mutualistic, commensalistic, or parasitic. In mutualism, both species benefit from the interaction, while in commensalism, one species benefits while the other is neither helped nor harmed. In parasitism, one species benefits at the expense of the other. Option C states that a parasite causes injuries to its host in the course of getting its food. This statement is true for most parasites. Parasites are organisms that live on or inside another organism (the host) and obtain their food from it. They can harm their host by consuming its tissues or fluids, causing disease, or disrupting its normal physiological functions. Option D states that holozoic mode of nutrition can be seen in animals, carnivorous plants, and some protists. This statement is also true. Holozoic nutrition is a type of nutrition in which an organism ingests solid food particles and digests them internally. Animals, including humans, obtain their nutrition through holozoic nutrition. Some plants and protists also use holozoic nutrition to supplement their energy requirements. Therefore, the correct answer to the question is Option A, which states that saprophytic nutrition involves feeding on soluble organic material from inorganic substances, and is true. The other options are all true statements about nutrition and symbiotic relationships