3 years ago

Similarities and differences between frogs and humans excretory system

1 answer:

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Frogs have only one opening, called the cloaca, through which both feces and urine pass. Humans, however, possess two separate orifices for urine and feces to exit through.

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Which evidence originally supported Hess's idea of seafloor spreading in 1968?

Alchen [17]

Answer:

Rocks across the ocean floor have alternating magnetic stripes.

Explanation:

Different types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence made scientists take a second look at Wegener's hypothesis of continental drift.

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3 years ago

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14. There's more<br> in a handful of soil than on all other discovered planets.

Dimas [21]

Answer:

Soil is full of life. It is often said that a handful of soil has more living organisms than there are people on planet Earth.

Explanation:

Soils are the stomach of the earth, consuming, digesting, and cycling nutrients and organisms.

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3 years ago

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