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Mama L [17]
3 years ago
14

Darwin developed the theory of evolution to explain why there are so many different kinds of living things. He could easily obse

rve that offspring of any animals were slightly different from their parents and that this could allow for big changes over thousands of years. He did not know that genes caused the differences. Genes are now very important in the modern theory of evolution.
What most likely led to a change in the widely accepted theory of evolution?

a.new experiments involving genes and evolution
b.experiments with Darwin’s original hypotheses
c.changes that Mendel made to his laws of genes
d.studies of evolution without Mendel’s laws
Chemistry
2 answers:
Nesterboy [21]3 years ago
5 0

Answer:

The correct answer will be option-

Explanation:

Charles Darwin is known for his theory of evolution which stated that species change over time as a result of the natural selection and all the species have descended from a common ancestor.

Mendel published his results in 1865 which termed the heredity material as factors but both of them were unknown with the concept of the gene.

Later experiments showed that evolution is correlated with genes or the genes control the evolution by causing mutation in the DNA. These experiments are the ones which were performed to test the original hypothesis of Darwin.

Thus, Option-B is the correct answer.

zzz [600]3 years ago
4 0
B) experiments that Darwin's original hypotheses
I believe is the right answer :)
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Which of the following best describes an empirical formula?
Monica [59]

Answer:

Option C :

a chemical formula that shows the relative number of each type of atom in a molecule, using the smallest possible ratio

Explanation:

Empirical Formula:

Empirical formula is the simplest ration of atoms in the molecule but not all numbers of atoms in a compound.

So,

Tha ration of the molecular formula should be divided by whole number to get the simplest ratio of molecule

For Example

      C₂H₆O₂ Consist of  Carbon (C), Hydrogen (H), and Oxygen (O)

Now

Look at the ratio of these three atoms in the compound

                         C : H : O

                         2 : 6 : 2

Divide the ratio by two to get simplest ratio

                          C : H : O

                         2/2 : 6/2 : 2/2

                             1 : 3 : 1

So for the empirical formula the simplest ratio of carbon to hydrogen to oxygen is 1:3:1

So the empirical formula will be

                     Empirical formula of C₂H₆O₂ = CH₃O

So, Option C is correct :

a chemical formula that shows the relative number of each type of atom in a molecule, using the smallest possible ratio

6 0
3 years ago
What does the pacific tsunami warning system use to detect tsunamis ?
S_A_V [24]

Answer:

C

Explanation:

Their are pressure sensers in the water that will detect high pressure and set of scales that are currently detecting semic waves and trigger sierns.

7 0
3 years ago
Which of the following statements are true? (There are 2)
Shalnov [3]

Answer:

A and B

Explanation:

the other two make no sense at all

4 0
3 years ago
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3) In the Hydrolysis of Disaccharides and Polysaccharides portion of the lab, starch should give one positive iodine test and on
AfilCa [17]

Answer: potassium iodide is the basic test for starch,and the positive test is blue-black coloration, any other test substance which is not starch will give a negative results.

Explanation:

Starch is an example of  polysaccharide  and since the standard test for it is potassium iodide solution, it gives a positive test.

Diasaccharides e.g maltose are reducing sugars.their standard test is BENEDICT test .

Therefore, in the hydrolysis;  starch should give a positve test, while Diasaccharides should give negative rest.

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The main reason that it's important to test only one variable at a time is so that
bonufazy [111]

D. quantitative data can be recorded.

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