The part of the seed that provides nutrition to the developing embryo is: MCQ with Answer and Explanation

Explanation:
The skeletal system, composed of bones and cartilage, provides structural support for the body, protects vital internal organs (like the brain and heart), and serves as a site for muscle attachment. The muscular system, consisting of skeletal, smooth, and cardiac muscles, contracts to produce movement of the body and internal organs. The endocrine system comprises glands that secrete hormones directly into the bloodstream to regulate various physiological processes. All statements are correct.

Explanation:
The common cold is a viral infectious disease of the upper respiratory tract. While many viruses can cause it, Rhinoviruses are the most common causative agents, responsible for 30-50% of cases. Coronaviruses and adenoviruses can also cause colds. Influenza virus causes the flu, which is a more severe respiratory illness.

Explanation:
Cardiac muscle has striations and contracts involuntarily. Skeletal muscle is voluntary, smooth involuntary; myelin is produced by Schwann cells (PNS) and oligodendrocytes (CNS), not neurons.