allopatric: occurring in separate non-overlapping geographical areas.
sympatric: occurring within the same geographical area; overlapping in distribution.
(allopatric is the answer)
The virtually universal decline in near vision in middle adulthood is called presbyopia.
<h3>What is vision?</h3>
Vision is the ability of the eyes to receive and send signals to the brain which then interprets and produces a picture of the object.
A common eye defect the occurs as people grow into adulthood is known as presbyopia.
In conclusion, presbyopia is an age-dependent eye defect.
Learn more about presbyopia at: brainly.com/question/9121049
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Blood vessels expand during hot weather and retract/ tighten in cold weather
Answer:
One hint is that, if a message is being sent, the "sender" is probably the nervous systems. There are several subsystems to the nervous system, but it regulates and controls virtually all bodily functions. The nervous system monitors your body's temperature, and takes actions to regulate it, such as telling your muscular system to shiver to generate more heat. It sends this message to the muscular system because your muscles cause bodily movement, such as walking, lifting weights, and even shivering.
When your nervous system determines that your body temperature has returned to normal, it again sends a message to your muscular system to stop shivering.
