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Indicate whether each of the statements in COLUMN I applies to A ONLY, B ONLY, BOTH A and B or NONE of the items in COLUMN II. Write A only, B only, both A and B, or none next to the question number (1.3.1 to 1.3.3) in the ANSWER BOOK

Biology

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Answer

A

only

Here are the answers to your questions:

1.3.1. The bond between two nitrogenous bases in DNA is a hydrogen bond. Peptide bonds link amino acids.
The correct option is A only.

1.3.2. Precocial birds have hatchlings that are relatively mature and mobile soon after birth. Altricial birds have helpless hatchlings.
The correct option is A only.

1.3.3. The pancreas has both exocrine functions (producing digestive enzymes) and endocrine functions (producing hormones like insulin and glucagon). The pituitary gland is primarily an endocrine gland.
The correct option is B only.

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