The Heads of the Myosin Myofilaments Are Called ________ When

question 44

Multiple Choice

The heads of the myosin myofilaments are called ________ when they link the thick and thin filaments together during skeletal muscle contraction.

• A) neuromuscular junctions
• B) synapses
• C) cross bridges
• D) motor units

---

Definitions:

Seed Dispersal

The mechanism by which seeds are spread from their parent plant to new locations, aiding in species spread and diversity.

Indigestible Seed Coats

The outer layers of seeds that cannot be broken down by the digestive system of certain animals, aiding in the dispersion of seeds.

Drupe

A simple, fleshy fruit in which the inner wall of the fruit is a hard stone (e.g., peach, cherry).

Berry

A simple, fleshy fruit in which the fruit wall is soft throughout (e.g., tomato, banana, grape).