Question 1 a) Hand drawn illustration of four chambers of the ruminant stomach.

Here's a review of your work:

• Question 1 a) Hand drawn illustration of four chambers of the ruminant stomach. ✅ Correct. Your diagram accurately illustrates the four chambers of the ruminant stomach (Rumen, Reticulum, Omasum, Abomasum) and their relative positions, along with key internal features. Your description of each chamber is also accurate.

• Question 1 b) A hand-drawn illustration of Sliding- filament mechanism. ✅ Correct. Your diagram clearly depicts the components of a sarcomere and the steps involved in the sliding filament mechanism of muscle contraction. The accompanying explanation accurately describes the sequence of events, including the roles of Ca²⁺, troponin, tropomyosin, actin, myosin, and ATP.

• Question 1 c) Axial skeleton of a goat represented as a hand-drawn illustration. ✅ Correct. Your illustration provides a good lateral view of a goat's axial skeleton, with many key bones and vertebral regions correctly labeled. You have also indicated some descriptive bone features.

• Question 2 a) Fermentation and failure to eructate. ✅ Correct. Your explanation accurately describes the process of fermentation in the rumen, the production of volatile fatty acids and gases, and the consequences of a failure to eructate, leading to ruminal bloat and its potential dangers.

• Question 2 b) Factors affecting testicular function in bulls. ✅ Correct. Your detailed explanation covers the primary factors influencing testicular function in bulls, including temperature regulation, nutritional status, and the impact of age and health conditions.

Overall, your answers are comprehensive and accurate.