Answer:
Isometric
Explanation:
Isometric contraction may be defined as the type of contraction that produces the muscle tension. No change in the angle of the skeletal joint is noticed in the isometric contraction.
The sarcomere shortens during the muscle contraction this causes the increase in the muscle tension of the muscle. The length of the muscle do not change in the isometric contraction. The isometric contraction is important for maintaining posture.
Thus, the correct answer is isometric contraction.
4. Fossils
Fit of the continents
Geologic features
5. Pangaea
The answer should be "His observation of the geographic distributions of living things."
