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.
The answer is C. large changes in allele frequencies can occur in a short time.
Genetic drift is a change in the frequency of alleles in a population as a result of random sampling of organisms and it decreases genetic variation of the population. In specific circumstances, large and rapid changes in allele frequencies can occur in a short time. The smaller the population, the more susceptible it is to genetic drift.
TRUE. A disease that wiped out a rabbit population in an environment would affect the coyote population in the same environment.
Rabbits are the food source of the coyote. If they are wiped out, the coyote will starve and slowly die out.
Answer: of course you're pretty every man and women is pretty us god made you to just be you not someone else
Explanation: if people say you are ugly just tell them "i know but have you looked in a mirror". And if people tell you that you're ugly they are just HATERs!! PERIOD ok you are beautiful no matter what ok..... :)
