The shell takes 15 to 16 hours to form in a ditiestic hen. It consists of crystals of calcite, a form of calcium carbonate , sixengthened with protein fibers which also attach it to the underlying membrane. The amount of calcium needed for each egg is about 2 grams As no more than 25 milligrams are circulating in the blood of the hen,the balance must be mobilized from her reserves. She cannot absorb enough calcium from her food while making the egg so she has to remove it from her bones. According to this paragraph.protein fibers in the eggshells of birds serve to: A) deliver crystals of calcite to the bones of the developing embryo. B) facilitate-the movement of life -sustaining gases to the embryo. C) strengthen the shell and attach it to the underlying membrane. D) suspend the yolk in a hammock -like feature for protective purposes.

Question

The shell takes 15 to 16 hours to form in a ditiestic hen. It consists of crystals of calcite, a form of calcium carbonate , sixengthened with protein fibers which also attach it to the underlying membrane. The amount of calcium needed for each egg is about 2 grams As no more than 25 milligrams are circulating in the blood of the hen,the balance must be mobilized from her reserves. She cannot absorb enough calcium from her food while making the egg so she has to remove it from her bones. According to this paragraph.protein fibers in the eggshells of birds serve to: A) deliver crystals of calcite to the bones of the developing embryo. B) facilitate-the movement of life -sustaining gases to the embryo. C) strengthen the shell and attach it to the underlying membrane. D) suspend the yolk in a hammock -like feature for protective purposes.

Answer 1

## Step 1The problem is a reading comprehension question that requires understanding the information provided in the paragraph. The paragraph discusses the formation of eggshells in hens, focusing on the role of protein fibers.## Step 2The paragraph states that the eggshell is strengthened with protein fibers and these fibers also attach it to the underlying membrane. This information directly corresponds to option C.## Step 3The paragraph does not mention the protein fibers delivering crystals of calcite to the bones of the developing embryo, facilitating the movement of life-sustaining gases to the embryo, or suspending the yolk in a hammock-like feature for protective purposes. Therefore, options A, B, and D are not supported by the information in the paragraph.

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