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liberstina [14]
3 years ago
9

How did the discovery of new elements such as gallium demonstrates the usefulness of mendeleev's table?

Biology
1 answer:
Crazy boy [7]3 years ago
4 0
The discovery of new elements such as gallium demonstrated the predictivinnes ability of the periodic table proposed by Dimitri Medeleiev.

Mendeleieve observed that, when the elements were organized by ascending atomic mass, a periodic pattern of the properties appeared. The elements arranged in sane columns showed similar properties. So Mendeleiev predicted the existence of elements that had not been discovered but that he affirmed that should have some properties given the position that they would occupy.

Gallium is an example of one of the elements that was discovered and exhibited the properties predicted by the space that it occupies in the periodic table.


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In garden peas, tall plants (T) are dominant to short plants (t), and round pods (R) are dominant to constricted pods (r). A tru
Nataliya [291]

Answer:

Based on the given information, the study of different varieties of the garden pea was done, that is, tall plants with round pods having homozygous genotype TTRR, and the short plants with constricted pods having homozygous genotype ttrr. Post crossing the mentioned varieties of garden pea, the F1 generation comprises tall plants with round pods having the genotype TtRr. While when the crossing of F1 generation plants was done, the plants obtained in the F2 generation demonstrated the phenotype, that is, tall plants with round pods, which is 75 in number and short plants with constricted pods, which is 24 in number.  

This shows that the genes would have been the linked genes, as they would have been situated very close together on the homologous chromosomes, and because of this linkage, the expression of the genes would have taken together.  

In case, if there was no linkage, then the genes would have assorted independently, and the offspring produced in the F2 generation would have shown the phenotypic ratio with the features of tall plants with round pods (9), short plants with round pods (3), tall plants with constricted pods (3), and short plants with constricted pods (1).  

Though the above-mentioned situation did not occur and the plants obtained in the F2 generation demonstrated the phenotype, that is, tall plants with round pods, which is 75 in number and short plants with constricted pods, which is 24 in number. This further puts more emphasis on the fact that the genes for both the phenotypes were linked due to which expression of only the mentioned two varieties took place and the other two failed to do so.  

5 0
3 years ago
"The plant produced yellow flowers," is an example of
irakobra [83]

The first example is a qualitative data while the second example is a quantitative data.

TYPES OF DATA:

  • Data refers to raw information. It is important to collect data in an experiment. There are two major types of data namely:

  • Quantitative data: This refers to numerical information i.e. involves numbers that are countable. e.g. 10 houses, 5 goats.

  • Qualitative data: This refers to information regarding the quality of something. They cannot be counted as opposed to quantitative data, they can only be described. For example, yellow bag etc.

  • Therefore, the expression that "plant produced yellow flowers" is a qualitative data while "fertilizer A produced 5 flowers" is a quantitative data.

Learn more: brainly.com/question/96076?referrer=searchResults

8 0
3 years ago
Every day we inhale and exhale nearly _____ breaths of life-sustaining air.
adoni [48]
Every day we inhale and exhale <span>approximately 7 or 8 liters </span> breaths of life-sustaining air <span>each minute or 11,000 liters per day. Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
I need help plz I’ll mark you brainliest
vova2212 [387]

Answer:

they are both sources of energy

Explanation:

6 0
3 years ago
Use the terms phenotype and genotype in a <br> complete sentence.
enot [183]

Answer:

Genotype" is an organism's full hereditary info. and "Phenotype" is an organism's actual observed properties, such as development, or behavior.

3 0
3 years ago
Read 2 more answers
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