The calcium that triggers muscle contraction is stored in synaptic vesicles called endoplastic reticulum. that is not the only function of the endoplastic reticulum it is also a network of a membranous tubules within the cytoplasm of a eucryotic cell continuous with the nuclear membrane.
Whales use their lower jawbone to the middle ear. whereby they can ear clearly while they are in the water. Human ears and dolphins ears they work the same . They receive sound directly from the air.
In similar way dolphins and human ears are placed in basic anatomical location which is same as on the head. Without a medium hearing is not possible.
The medium sound for human is air. Sound travels 343 meters per second in air and 147 meters per second in water. The most effective way of transmitting sound waves is through water.
We can say that the sound will be fast to travel in medium if the molecules are closer.
Answer;
Predominant pain pattern.
Explanation;
Somatic symptom disorder is a disorder in which people become excessively distressed, concerned, and anxious about bodily symptoms that they are experiencing, and their lives are greatly and disproportionately disrupted by the symptoms.
Predominant pain pattern is a pattern of somatic symptom disorder in which the person's primary bodily problem is the experience of pain.
Concerns and disruption are disproportionate to severity and seriousness. Can begin at any age, more common in women.
It often develops after an accident or during an illness that has caused genuine pain, which then takes on a life of its own.
1. bees and flowers - <span>coevolution
</span><span>2. cichlid fishes- </span><span>divergent evolution
</span><span>3.flying squirrel and flying phalanger - </span><span>Pairs convergent evolution</span>