Explanation

Explanation

Explanation

Staphylococcus aureus commonly enters the bovine udder during milking through teat canal contamination.

It is a major cause of mastitis in dairy cattle due to its ability to persist in the udder.

Explanation

Blackleg is caused by Clostridium chauvoei, a bacterial infection that produces toxins leading to muscle necrosis.

It mainly affects young cattle.

It is characterized by sudden death and gas-filled swelling in muscles.

Explanation

Norepinephrine is the primary neurotransmitter released by postganglionic neurons in the sympathetic nervous system.

It prepares the body for "fight or flight" responses by increasing heart rate, blood pressure, and alertness.

Explanation

Amoeba primarily excretes waste like ammonia through diffusion across its general surface.

The contractile vacuole mainly regulates water balance.

Explanation

Camels can drink as much as 1/3 of their body weight in ten minutes, which other mammals cannot.

This statement is not directly related to drought adaptation, as rapid water intake does not help in conserving water.

Explanation

Uterine prolapse in cattle primarily occurs after difficult or prolonged calving, which weakens pelvic muscles and ligaments.

It often follows straining and trauma during delivery, especially in cases of large calf or twin births.

Explanation

Hemorrhagic Septicemia in buffaloes is caused by Pasteurella multocida.

It is a highly fatal bacterial disease causing septicemia and hemorrhages.

Explanation

Cardiac muscle cells have very limited ability to regenerate after injury, leading to scar tissue formation.

Fibroblasts, renal tubular cells, and hepatocytes have a higher regenerative capacity compared to cardiac muscle.