The correct answer is "the embryonic mesoderm."

Here's a step-by-step explanation:

1. In vertebrate animals, the body is initially formed from three germ layers during embryonic development: the ectoderm, endoderm, and mesoderm.

2. The ectoderm forms the nervous system and skin.

3. The endoderm forms the lining of the digestive and respiratory systems.

4. The mesoderm forms all of the connective tissues, as well as muscles, the circulatory system, kidneys, and much of the reproductive system.

So, all of the connective tissues in a vertebrate animal are derived from the embryonic mesoderm.

Question

The correct answer is "the embryonic mesoderm."

Here's a step-by-step explanation:

1. In vertebrate animals, the body is initially formed from three germ layers during embryonic development: the ectoderm, endoderm, and mesoderm.

2. The ectoderm forms the nervous system and skin.

3. The endoderm forms the lining of the digestive and respiratory systems.

4. The mesoderm forms all of the connective tissues, as well as muscles, the circulatory system, kidneys, and much of the reproductive system.

So, all of the connective tissues in a vertebrate animal are derived from the embryonic mesoderm.

Knowee AI · Accepted Answer

The correct answer is "the embryonic mesoderm."

Here's a step-by-step explanation:

1. In vertebrate animals, the body is initially formed from three germ layers during embryonic development: the ectoderm, endoderm, and mesoderm.

2. The ectoderm forms the nervous system and skin.

3. The endoderm forms the lining of the digestive and respiratory systems.

4. The mesoderm forms all of the connective tissues, as well as muscles, the circulatory system, kidneys, and much of the reproductive system.

So, all of the connective tissues in a vertebrate animal are derived from the embryonic mesoderm.

In a vertebrate animal, all of the connective tissues are derived fromMultiple choice question.the embryonic ectoderm.the embryonic endoderm.the embryonic mesoderm.