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katovenus [111]
3 years ago
13

According to the model developed by Copernicus, what causes day and night on Earth?

Biology
2 answers:
Gnom [1K]3 years ago
7 0
A IS THE RIGHT ANSWER
kramer3 years ago
6 0

<u>It is the Earth that orbits around the Sun</u>, <em><u>as the Heliocentric Theory (Helios = Sun) of Copernicus said</u></em>.

<em><u>The Sun does not "come out" or "set"</u></em>: <u>in reality it is the Earth that, by turning or rotating on its own axis, causes day and night</u>.

<em><u>The answer is</u></em>: <u>A. Earth rotates on its axis.</u>

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4 0
3 years ago
On a global scale, energy _____ ecosystems whereas chemical elements _____ ecosystems. see concept 55.1 (page 1237) on a global
Kay [80]
<span>The choices for this question are:
</span>-is biologically magnified in ... are recycled in
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On a global scale, energy flows through ecosystems whereas chemical elements are recycle in ecosystems. So the answer is the third option. 

Energy flows through the ecosystem. Most energy comes from sunlight and it is transformed into chemical energy by autotrophs. When they are consumed by heterotrophs the energy is passed on, until it dissipates as heat.  
</span><span>
Chemical elements like carbon and nitrogen, on the other hand, are cycled between biotic and abiotic factors in an ecosystem. This is not possible for energy. These chemical elements come from abiotic factors like the air, light and soil. They are incorporated in the biomass of the photosynthetic organisms and are consumed by other organisms. They are changed back into their inorganic form when the organism dies and are broken down by decomposers and the cycle goes on. So they are constantly being recycled. 

In summary, energy needs a continuous source to be able to maintain and sustain the energy flow in the ecosystem. Chemical elements, on the other hand, are just recycled through processes between abiotic factors and biotic factors. </span>
8 0
3 years ago
A particular recessive genetic disorder is fatal before birth, so there are no homozygous recessive individuals. In a particular
mrs_skeptik [129]

Answer:

The answer is letter D.

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And the recessive population is: q= 0.033.

3 0
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