Is a sponge an animal?

Is a sponge an animal?

Sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera. They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more.

Is Sponge a plant?

It is a simple animal with many cells, but no mouth, muscles, heart or brain. It is sessile: it cannot move from place to place the way most animals can. A sponge is an animal that grows in one spot like most plants do. Most sponges live in the ocean.

How are sponges classified as animals?

Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues and organs.

What happens when you touch a sea sponge?

Initially, a stinging or itchy, prickly sensation is felt. Later, burning, pain, blisters, joint swelling, and severe itching may develop. In cases with large body exposure to certain sponges, patients may develop, fever, chills, dizziness, muscle cramps and nausea.

Who eats sea sponges?

Two organisms that eat sponges though are hawksbill sea turtles and nudibranchs.

What is the nickname for giant barrel sponges?

redwood of the reef

What are some ways in which humans use sponges?

Sea sponges are very popular in the health and beauty field. They can be used for cleaning an array of surfaces and have better water retention than that of the artificial sponge. Most popular uses include car care, household cleaning, makeup application and removal, skin exfoliant for when bathing, and personal care.

How old does a sponge live?

2,300 years

When did the 5 major extinctions occur?

BP: Nowadays, scientists are aware of five mass extinction events in the past, starting with the End-Ordovician Extinction 450 million years ago and up to the End-Cretaceous Extinction that killed off the dinosaurs 66 million years ago (see chart).

What are the 7 mass extinctions?

In order, these extinctions are known as the Ordovician (443 million years ago), the Late Devonian (372 million years ago), the Permian (252 million years ago), the Triassic (201 million years ago) and the Cretaceous (66 million years ago).