<p><strong>1. Who is known as Father of Botany?</strong></p> <p><strong>Ans.  Theophrastus</strong></p> <p><strong>2. Who explained about the blood circulation first?</strong></p> <p><strong>Ans. William Harvey</strong></p> <p><strong>3. Which tissue helps in keeping the body warm?</strong></p> <p><strong>Ans. Adipose tissue<br /><br />4.