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I am Lyosha [343]
3 years ago
14

In ancient times, scientists believed that matter could be destroyed by burning or breaking. Modern scientists believe that matt

er cannot be destroyed. What best accounts for these different opinions?
A.scientists with varied backgrounds make different interpretations

B. scientists come up with different hypotheses without enough evidence

C.scientists believe in discarding all interpretations which were made in the past D.scientists propose different hypotheses to include all the scientific possibilities
Biology
2 answers:
lord [1]3 years ago
8 0

D.scientists propose different hypotheses to include all the scientific possibilities

bazaltina [42]3 years ago
4 0

Answer: A.scientists with varied backgrounds make different interpretations.

Explanation:

The scientists having knowledge of different aspects of scientific principles and skills can give different opinions to the situations. This is not necessary that the scientists working on modern technology will have the same opinion about the scientific research and innovations as that of the ancient scientists. Hence, they can make different opinions.  

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Amanda is presented with a piece of metal and asked to determine its physical
vesna_86 [32]

Answer:

D. magnetism, electrical conductivity, high melting point

Explanation:

Magnetism is the property of metal due to which they are attracted by magnets. Metals have high electrical conductivity which means they are good conductors of electricity. They also have high melting points i. e. they require high amount of heat to change its solid state into liquid state. In melting, bonds are broken down due to the applicable of heat energy.

4 0
3 years ago
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What role do Bacteria and fungi play in the food web?
Marta_Voda [28]

Answer:

Fungi is a producer. Like many plants, mushrooms and algae they generate nutrients from the suns rays via photosynthesis. Consumers feed off them, and the food chain continues. Fungi and all producers are very important to the food chain as they are what helps keeps herbivores alive.

Explanation:

hope it helps !!

8 0
3 years ago
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Which natural selection condition example can be classified as over production of offspring?
Tatiana [17]
Natural selection is the process by which individuals with characteristics that are advantageous for reproduction in a specific environment leave more offspring in the next generation, thereby increasing the proportion of their genes in the population gene pool over time. Natural selection is the principal mechanism of evolutionary change, and is the most important idea in all biology. Natural selection, the unifying concept of life, was first proposed by Charles Darwin, and represents his single greatest contribution to science.

Natural selection occurs in any reproducing population faced with a changing or variable environment. The environment includes not only physical factors such as climate or terrain, but also living factors such as predators, prey, and other members of a population.

Mechanism of Natural Selection

The mechanism of natural selection depends on several phenomena:

• Heredity: Offspring inherit their traits from their parents, in the form of genes.

• Heritable individual variation: Members of a population have slight differences among them, whether in height, eyesight acuity, beak shape, rate of egg production, or other traits that may affect survival and reproduction. If a trait has a genetic basis, it can be passed on to offspring.

• Overproduction of offspring: In any given generation, populations tend to create more progeny than can survive to reproductive age.

• Competition for resources: Because of excess population, individuals must compete for food, nesting sites, mates, or other resources that affect their ability to successfully reproduce.

Given all these factors, natural selection unavoidably occurs. Those members of a population that reproduce the most will, by definition, leave more offspring for the next generation. These offspring inherit their parents' traits, and are therefore also likely to succeed in competition for resources (assuming the environment continues to pose the same challenges as those faced by parents). Over several generations, the proportion of offspring in a population that are descended from the successful ancestor



Uloborid spider eggs and spiderlings. In any given generation, populations tend to create more offspring than can survive to reproductive age.

increases, and traits that made the ancestor successful therefore also increase in frequency. Natural selection leads to adaptation, in which an organism's traits conform to the environment's conditions for existence.

5 0
2 years ago
If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in
den301095 [7]

Complete question:

Phenotype               Genotype         Number of Individuals

Long-tailed                     TT                               260

Long-tailed                      Tt                                160

Short-tailed                      tt                                 80

If 20% of the long-tailed cats got their tails stuck in something and failed to reproduce, what would be the expected change in frequency of T in the next generation

Answer:

The expected change in allelic T frequencies probably changes from 0.6 to 0.57 in the following generation.  

Explanation:

Due to technical problems, you will find the complete question, answer and explanation in the attached files.

Download pdf
7 0
3 years ago
During the cell cycle, the cell must pass through several checkpoints that confirm that the cell is ready to progress to the nex
Oduvanchick [21]

Answer:

The correct answer would be - Cells begin dividing faster, leading to cancer.

Explanation:

In the process of the cell cycle, there are several checkpoints that ensures that the cell is all set to move to next phase, the cell that not match the requirements cell have not move to next phase.

These checkpoints control the rate of cell proliferation or division and if a dividing cell fails to pass through any checkpoints due to the mutation, it is most likely divide uncontrollably and lead to cancerous or tumor cell.

Thus, the correct answer is - Cells begin dividing faster, leading to cancer.

3 0
3 years ago
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