Hypothesize some evolutionary advantages of being endothermic. what are some of the costs?

1 answer:

3 0

Pros:
-allows us to live in cooler areas
-regulate our body temperatures to fight off infection.
Cons:
-energetically costly,
-warm-blooded animals need more food than cold-blooded ones.

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describe how a student could use a microscope to compare the size of frog skin cells to the size of human skin cells.

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<span>The use of the fine lens and the light source.

A light microscope uses focused light and lenses to magnify an object. Light microscopes come in several forms. (1) Simple light microscopes use a single lens to magnify an object and cannot reach high magnification just like a handheld lens whose highest clear magnification in the best conditions is 25x. (2) Compound light microscopes use two sets of lenses - an objective lens and an eye piece. This is the type of light microscope whose magnification power reaches between 1000x and 2000x.</span>

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4 years ago

Joe Tourist and his family leave for Dallas , a distance of 177 miles. They arrive in Dallas 12 hours later because they stopped

german

14.75mph

Explanation:

Given parameters:

Distance traveled = 177miles

Time of arrival in Dallas = 12hours

Unknown:

Average speed = ?

Solution: