Which of the Following HTML Elements Is Used to Add

question 76

Multiple Choice

Which of the following HTML elements is used to add a row in a table?

• A) ​< td >
• B) ​< tr >
• C) ​< dd >
• D) ​< tl >

Understand the principles of chemical reactions, including energy changes and conservation of matter.

Describe the principles behind pH, acidity, and buffering in biological systems.

Differentiate between covalent, hydrogen, and ionic bonds in terms of strength and their roles in biological molecules.

Explain the significance of the atomic structure in determining chemical properties and behaviors of elements.

---

Definitions:

Norepinephrine

Neurotransmitter substance released from most of the postganglionic neurons of the sympathetic division; hormone released from the adrenal cortex that increases cardiac output and blood glucose levels; also called noradrenaline.

Myenteric Plexus

A network of neurons located between the layers of the gastrointestinal tract, playing a crucial role in the regulation of digestive tract motility.

Interstitial Cells

Cells located amongst the tissues of an organ, often referring to cells in the testes and ovaries that produce hormones.

Pacemaker Cells

Specialized cells within the heart's sinoatrial node that generate and regulate the heart's rhythm.