सजीवों का शरीर सूक्ष्म इकाइयों से बना होता है, जिन्हें ______ कहते हैं।

Which one of the following is the site for active ribosomal RNA synthesis?

The cell wall of fungi is primarily composed of which substance?

Which of the following statements is/are correct? I. The cell walls permit the cells of plants, fungi, and bacteria to withstand very dilute external media without bursting. II. Cellulose is a complex substance and provides structural strength to plants.