The answer is the second choice B
(A)Helicase is that enzyme...
Extension or straightening of the elbow stops when the proximal end of the ulna engages the olecranon fossa of the humerus.
Explanation:
Extension of the elbow is the straightening of the forearm or bringing it back to its anatomical position by the triceps brachii and the anconeus muscles.
The elbow joint, a hinge type of joint, is formed at the conjunction of humeral distal end with the ulnar proximal end.
Olecranon process is a structure at the ulnar distal end which fits exactly into the olecranon process at the humeral proximal head with the arm in extended position.
Olecranon fossa is a <em>triangular</em> depression or fossa which is deep in the posterior humerus. So the range of motion due to extension of forearm terminates or limits at the contact of the ulnar olecranon process with that of the humeral olecranon process at the olecranon fossa.
<span>We are taught that modern scientists are driven only by reason and facts. It was only early scientists like Galileo who needed to fear the reaction to their radical views. Neither of these beliefs is true. The reaction to Alfred Wegener's Continental Drift Theory demonstrates that new ideas threaten the establishment, regardless of the century.</span>
Answer:
They are protected under the <u>Marine Mammal Protection Act</u>.
Dolphins, whales, seals, porpoises, and sea lions are all protected under this act.
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