Question

В чем сходства и различия в питании амебы и гидры? срочно!!!!

Answer 1

Сходства:они хищные, остатки пищи выходят через рот,

Answer 2

Similarities and Differences in the Nutrition of Amoebas and Hydra

Amoebas and hydra are both organisms that belong to the animal kingdom, but they have different characteristics and modes of nutrition. Let's explore the similarities and differences in their nutrition.

Similarities: 1. Both amoebas and hydra are heterotrophic organisms, meaning they cannot produce their own food through photosynthesis like plants. Instead, they rely on external sources for their nutrition. 2. Both amoebas and hydra are capable of capturing and ingesting food particles.

Differences: 1. Amoebas: Amoebas are single-celled organisms that belong to the group of protozoans. They primarily feed on microscopic organisms such as bacteria, algae, and other small organic particles. Amoebas capture their food by extending their pseudopodia (temporary projections of the cell membrane) around the prey and engulfing it through a process called phagocytosis. Once inside the amoeba, the food is enclosed in a food vacuole, where it is digested by enzymes. The nutrients are then absorbed into the cytoplasm for energy production and growth.

2. Hydra: Hydra, on the other hand, is a multicellular organism that belongs to the group of cnidarians. They are typically found in freshwater environments. Hydra have specialized tentacles armed with stinging cells called cnidocytes, which they use to capture their prey. When a small organism, such as a tiny crustacean or a small worm, comes into contact with the tentacles, the cnidocytes discharge a harpoon-like structure called a nematocyst, injecting venom into the prey and immobilizing it. The tentacles then bring the paralyzed prey to the mouth, where it is ingested and digested in the gastrovascular cavity. The nutrients are absorbed into the cells lining the cavity for energy production and growth.

In summary, while both amoebas and hydra are heterotrophic organisms that rely on external sources for their nutrition, they have different methods of capturing and digesting their food. Amoebas are single-celled organisms that use pseudopodia to engulf their prey, while hydra are multicellular organisms that use specialized tentacles armed with stinging cells to capture and immobilize their prey before ingestion.

I hope this information helps! Let me know if you have any further questions.