Answer: C. A snake hides under a rock on a hot day.
Explanation:
Thirst, hunger, and pathogens are internal issues (meaning inside of the body). Weather (heat) is something from the external environment that the snake is responding to (hiding). Therefore, the correct option is C.
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<em>Question: Which behavior is a response to an external stimulus?</em>
<em>A. A dog drinks to quench its thirst.</em>
<em>B. A squirrel eats when it is hungry.</em>
<em>C. A snake hides under a rock on a hot day.</em>
<em>D. A cat vomits to rid itself of pathogens.</em>
Answer:
Capillary refill time
Explanation:
Capillary refill time refers to the time that it takes for color to return to an external capillary bed after pressure has been applied (which causes blanching). Usually, on healthy individuals, capillary refill time takes less than 2 seconds. If the time is much longer, this could indicate problems such as shock, dehydration or peripheral artery disease.
Answer:
3) disaccharides
Explanation:
Maltose and lactose are made from 2 monosaccharides each.
Answer:
a) cell parts do everything
Explanation:
Firstly, a unicellular organism is an organism with only one cell. This means that there would be no specialization or differentiation of cells. Also, this means that tissues, which Is the collection of similar cells, cannot be formed.
However, in its single cell, the unicellular organism will contain cell parts or organelles, which are organ-like structures that perform specific task in the cell. Therefore, cell parts in the single cell will do everything.
It allows scientists to challenge inaccuracies information.