Read the following statements and choose the correct option: 1. Invertebrates do not contain any hormones 2. A large number of chemicals act as hormones and provide coordination in the vertebrates 3. Pineal gland is located in the abdomen 4. The hypothalamus is the basal part of diencephalon, forebrain and it regulates a wide spectrum of body functions.

Step-by-step solution

Invertebrates possess very simple endocrine systems with few hormones whereas a large number of chemicals act as hormones and provide coordination in the vertebrates . A large number of chemicals act as hormones and provide coordination in the vertebrates. Pineal gland is located in the brain. The hypothalamus is the basal part of diencephalon, forebrain and it regulates a wide spectrum of body functions.