Correct Answer: A). Dissecting microscopes and compound light microscopes
After magnification the object appears larger in size that is measured by the magnifying power. It can be found out by dividing the focal length of the scanning object to the focal length of the eye piece. From the above given option the greatest difference that is found in the magnifying power is between the dissecting microscope and compound light microscope.
Hence, the correct answer would be option A.
Amongst the options provided, the biggest difference in magnification power is between transmission electron microscopes and dissecting microscopes. Dissecting microscopes provide lesser magnification but enable three-dimensional viewing, while electron microscopes offer superior magnification and detail, at the cost of the specimen's life.
Therefore, the correct answer is option b.
The greatest difference in magnifying power lies between b. transmission electron microscopes and dissecting microscopes.
Dissecting microscopes provide lower magnification, typically ranging between 20 to 80 times the object size, and are suitable for viewing larger objects such as tissues (Fig 3.2b). They also offer a three-dimensional view of the specimen.
On the other hand, transmission electron microscopes utilize a beam of electrons instead of light.
This mechanism facilitates much higher magnification and detail while providing superior resolving power. However, this method requires the destruction of the specimen and cannot be used for viewing living cells.
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descent with modification
descent with differential reproduction
survival of the fittest
Answer:
Descent with modification
Explanation:
Darwin proposed the phrase "descent with modification" to explain that evolution of new species occurs when existing species accumulate genetic variation over the period of time.
Accordingly, the process of accumulation of genetic variations to get better adapted to the surroundings is followed by natural selection of individuals with beneficial adaptations that impact survival advantage to them. These individuals transmit the adaptations to their progeny.
Gradually, the process leads to the evolution of new species which differ from parental species in having the individuals carrying the beneficial adaptations.
The opposite of evaporation is condensation.
a mold fossil
a cast fossil
an original-remains fossil
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Choose all the answers that apply.
Which of the following fossils contains actual physical remains?
amber
footprint
bone
tooth
shell
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Choose all the answers that apply.
Rapid burial _____.
increases exposure to oxygen
decreases exposure to oxygen
slows down the rate of decay
prevents scavengers from eating organism remains
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Choose all the answers that apply.
Which of the following conditions are necessary for fossilization?
warm temperature
stable geological conditions
rapid burial
exposure to oxygen
presence of minerals
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What can fossils tell us about past species. Choose all that apply.
their closest living modern relatives
their extinction
their potential evolution
their age at death
their life cycle
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Which of the following is the best evidence that an area once had a tropical climate?
dinosaur fossils
coral fossils
fossil fuel deposits
insects trapped in amber
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Dr. Sheffield discovers burrows in a sedimentary rock bed. Which of the following is the most likely conclusion?
The area was once a forest.
The area was once a lake.
Worms once lived in the area.
Dinosaurs once lived in the area.
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Inna finds an unique fossil in her backyard along with a fossilized tooth. Fossils of bones, teeth, and shells have actual physical remains. So, the correct options for 1, 2, 3, 4, 5, 6 and 7 are D, (C, D and E), D, B, (C, D and E) ,D and D respectively.
Fossils are the fossilized remains of organisms that have been supplanted by rock material, including traces of species like bacteria, fungus, and single-celled organisms. The remains or evidence of prehistoric life that has been preserved through natural processes are known as fossils.
Shells, teeth, and bones are examples of fossilized organic matter. Scavengers are prevented from devouring organism remains by rapid burial. Fossilization requires stable geologic conditions. We can learn about former species' potential evolution, ages at death, and life cycles from their fossils. The best proof that a region once experienced a tropical environment is insects trapped in amber. Burrows in a sedimentary rock bed indicate that dinosaurs formerly inhabited the area.
Therefore, the correct options for 1, 2, 3, 4, 5, 6 and 7 are D, (C, D and E), D, B, (C, D and E) ,D and D respectively.
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b. They do not eat the same food.
c. They do not look the same.
d. They become physically separated from each other.
Answer:
They can no longer interbreed
Explanation: