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Sponges Biology Flashcards

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Questions and Answers

What phylum do sponges belong to?

Porifera

What type of symmetry do sponges exhibit?

Asymmetrical

What makes sponges similar to other animals in the animal kingdom?

Multicellular, heterotrophic, lack cell walls and produce sperm cells

What makes sponges different from other animals?

They lack true tissues and organs Signup and view all the answers

What do sponges look like?

Draw them. Signup and view all the answers

How do sponges eat?

Sponges obtain food by passing water through their bodies in a process known as filter-feeding. Signup and view all the answers

How do sponges reproduce?

Asexually and sexually Signup and view all the answers

What are any special or unique characteristics of sponges?

Choanocytes are versatile cells that create water flow and absorb nutrients. Signup and view all the answers

Study Notes

Sponges Overview

Belong to the phylum Porifera
Exhibit asymmetrical body symmetry

Classification in the Animal Kingdom

Multicellular organisms
Heterotrophic, meaning they obtain food from organic sources
Lack cell walls, differentiating them from plant cells
Produce sperm cells for reproduction

Structural Differences

Lack true tissues and organs, setting them apart from more complex animals

Feeding Mechanism

Utilize filter-feeding: Water is drawn through the sponge via tiny incurrent pores
Channels and chambers inside the sponge trap bacteria and tiny particles for nourishment
Collar cells (choanocytes) play a key role in trapping food and facilitating digestion while also allowing oxygen exchange from water

Reproduction

Reproduce both asexually (budding or fragmentation) and sexually (producing eggs and sperm)

Unique Characteristics

Choanocytes: Specialized cells that create water flow with their flagella while absorbing nutrients through their collars.

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Description

Test your knowledge on the unique characteristics of sponges with these flashcards. Learn about their phylum, symmetry, and what sets them apart in the animal kingdom. Perfect for biology students seeking to master this fascinating topic.