The animal group that lacks true tissues and includes species that are asymmetrical is the group of sponges, also known as Phylum Porifera. Here are the steps to arrive at this answer:

1. Start by understanding the question: We need to find an animal group that has no true tissues and includes species that are asymmetrical.

2. Recall the basic animal classification: Animals are classified into several groups based on their characteristics. Some of these groups include vertebrates, invertebrates, mammals, birds, fish, amphibians, reptiles, annelids, mollusks, arthropods, echinoderms, cnidarians, and poriferans (sponges).

3. Identify the group with no true tissues: Most animal groups have true tissues. However, sponges (Phylum Porifera) are known to lack true tissues. Instead, they have a simple aggregation of cells.

4. Confirm the group includes asymmetrical species: Most animals have some form of symmetry – bilateral (same on both sides) or radial (same in all directions). However, sponges are often asymmetrical, meaning they do not have any particular symmetry.

So, the animal group that fits the description in the question is Phylum Porifera, or sponges.

Question

The animal group that lacks true tissues and includes species that are asymmetrical is the group of sponges, also known as Phylum Porifera. Here are the steps to arrive at this answer:

1. Start by understanding the question: We need to find an animal group that has no true tissues and includes species that are asymmetrical.

2. Recall the basic animal classification: Animals are classified into several groups based on their characteristics. Some of these groups include vertebrates, invertebrates, mammals, birds, fish, amphibians, reptiles, annelids, mollusks, arthropods, echinoderms, cnidarians, and poriferans (sponges).

3. Identify the group with no true tissues: Most animal groups have true tissues. However, sponges (Phylum Porifera) are known to lack true tissues. Instead, they have a simple aggregation of cells.

4. Confirm the group includes asymmetrical species: Most animals have some form of symmetry – bilateral (same on both sides) or radial (same in all directions). However, sponges are often asymmetrical, meaning they do not have any particular symmetry.

So, the animal group that fits the description in the question is Phylum Porifera, or sponges.

Knowee AI · Accepted Answer

The animal group that lacks true tissues and includes species that are asymmetrical is the group of sponges, also known as Phylum Porifera. Here are the steps to arrive at this answer:

1. Start by understanding the question: We need to find an animal group that has no true tissues and includes species that are asymmetrical.

2. Recall the basic animal classification: Animals are classified into several groups based on their characteristics. Some of these groups include vertebrates, invertebrates, mammals, birds, fish, amphibians, reptiles, annelids, mollusks, arthropods, echinoderms, cnidarians, and poriferans (sponges).

3. Identify the group with no true tissues: Most animal groups have true tissues. However, sponges (Phylum Porifera) are known to lack true tissues. Instead, they have a simple aggregation of cells.

4. Confirm the group includes asymmetrical species: Most animals have some form of symmetry – bilateral (same on both sides) or radial (same in all directions). However, sponges are often asymmetrical, meaning they do not have any particular symmetry.

So, the animal group that fits the description in the question is Phylum Porifera, or sponges.

What animal group lacks true tissues and includes species that are asymmetrical?

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