The yolk sac supplies nutrients to the embryos of birds and reptiles. Here's a step-by-step explanation:

1. In birds and reptiles, the embryo develops inside an egg.
2. The yolk sac is a part of the egg, which is filled with yolk.
3. The yolk contains nutrients that the developing embryo needs to grow.
4. As the embryo develops, it absorbs nutrients from the yolk through the yolk sac.
5. Therefore, the yolk sac is the structure that supplies nutrients to the embryos of birds and reptiles.

Question

The yolk sac supplies nutrients to the embryos of birds and reptiles. Here's a step-by-step explanation:

1. In birds and reptiles, the embryo develops inside an egg.
2. The yolk sac is a part of the egg, which is filled with yolk.
3. The yolk contains nutrients that the developing embryo needs to grow.
4. As the embryo develops, it absorbs nutrients from the yolk through the yolk sac.
5. Therefore, the yolk sac is the structure that supplies nutrients to the embryos of birds and reptiles.

Knowee AI · Accepted Answer

The yolk sac supplies nutrients to the embryos of birds and reptiles. Here's a step-by-step explanation:

1. In birds and reptiles, the embryo develops inside an egg.
2. The yolk sac is a part of the egg, which is filled with yolk.
3. The yolk contains nutrients that the developing embryo needs to grow.
4. As the embryo develops, it absorbs nutrients from the yolk through the yolk sac.
5. Therefore, the yolk sac is the structure that supplies nutrients to the embryos of birds and reptiles.

Which of the following supplies nutrients to the embryos of birds and reptiles?Multiple choice question.PlacentaYolk sacChorionAllantois

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