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Oksanka [162]
3 years ago
11

1) What evidence is there that the human species has been successful so far? Explain.

Biology
1 answer:
tester [92]3 years ago
4 0

1) What evidence is there that the human species has been successful so far? Explain. 


Successful evolutionarily means "surviving and spreading geographically". Since we are far from extinction and we've spread all over the world, we are successful as a species. 

<span>2) What environmental pressures in the past do you think were most important in shaping the human species as it exists today? 

Those were: the weather (too cold, especially in the north and too hot in Sahara) - those made people more able to accomodate to the weather and predators - this made the species more communicative as only working together can we fight off bigger predators. 

3) What environmental pressures exist now that you think may be shaping the human species? 

</span>The pressures today are : the limited free land, limited resources and changing climate. They are connected to man-made global warming and overpopulation
<span>

4) What environmental pressures do you think may affect humans as Earth becomes more populated with humans in the future? Explain how these pressures may affect human traits.

The pressure in the past will be: raising temperature and flooding, more Co2 in the atmosphere. 

We might for example evolve to better extract the oxygen from the atmosphere and be better resistant to heat. 
</span>




Answer: I believe that the environmental pressures that exist now and that may be shaping the human species are the use of land, the extraction of resources, greenhouse emissions and water use. This are being used by use more and more as we start overpopulating the earth.

<span />
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Answer:

Photosynthesis

Explanation:

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vocabulary 1

1. DNA sequences

2. Homologous structures.

3. Paleontologist

4. analogous structures

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vocabulary 2

1. DNA sequences

2. Analogous structures

3. Comparative anatomy

4. Fossils

5. vestigial

6. homologous structures

7. Comparative embryology

8. structure

9. Scientists

Explanation:

1. Human and apes are evolutionarily closely related based on the analysis of their DNA sequences.

2. Wings of bats and birds serve the same function and are analogous structure.

3. Comparative anatomy is the study of the similarities and differences in structures in similar species.

4. Fossils demonstrate that during the evolution of the whale, the whale moved from land to the sea.

5. The human tailbone and appendix are vestigial organs.

6. The homologous structures are structures that are similar in related organisms because they were inherited from the common ancestor.

7. Comparative embryology is the study of similarities and differences in the embryo of different species.

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Answer:

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The ability of the lens to bend light rays so they focus on the retina is known as
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Answer:

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The lens of an eye and the cornea work together in forming a real image in the retina that houses numerous receptors in the fovea and blind spot of the optic nerve.

Image will be formed  in the retina when light rays converging most at the cornea upon entering and exiting the lens.The power of adjusting the eyes focal length is known as accommodation.

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