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Nat2105 [25]
4 years ago
12

Item 8

Biology
2 answers:
Alecsey [184]4 years ago
7 0

Answer:

D) found in a limited time span

Explanation:

Index fossils are the remains of living organisms for which we have already established relative age. These are fossils that only existed during a limited period of geologic time and are easily identified, found in large volumes, and found in many different locations around Earth. Due to these factors, index fossils may be used as a guide for comparison in determining the relative age of an unknown object.

have a nice day and mark me brainliest! :)

damaskus [11]4 years ago
7 0

Answer:

found in a limited time span

Explanation:

I Know This Because I Took Quis On It and Passed

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An increase in the amount of ultraviolet light entering the atmosphere through holes in the ozone layer will most likely
vladimir1956 [14]

cause an increase in the rate of certain mutations

3 0
3 years ago
Which of the following is a reason why cells divide? A. to keep demands on their DNA low B. to mutate their DNA C. to increase t
Goryan [66]

Answer:

The answer is B.

Explanation:

When you skin your knee,  cells divide to replace old, dead, or damaged cells.

6 0
3 years ago
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Using the information from problem 11, scientists do a further test cross using a heterozygote for height and nose morphology. T
mote1985 [20]

Answer:

The recombinant frequency between T and S is  18%;

The correct Sequence of genes is T-A-S

Explanation:

The table below shows the recombinant frequency between heterozygous height and nose morphology:

Tall-uptrend snout                            40%                            Expected

Dwarf-downtrend snout                   42%                            Expected

Dwarf-uptrend snout                         9%                             Recombinant

Tall-uptrend snout                             9%                             Recombinant

Sum Total                                           100%

To calculate the recombinant frequency; we have :

=9+9

=18%

Hence, the recombinant frequency between T and S = 18%

The determinant of the corect sequence of the genes is  T-A-S

4 0
3 years ago
A scientist tests a sample in the lab and finds
ziro4ka [17]

Answer:

It is difficult to obtain a final conclusion with this information, but it is possible that the sample doesn't contain living organisms whose genetic material is composed of DNA. Another possible reason for this result is that the DNA extraction protocol used in the experiment is not suitable for this sample.

4 0
3 years ago
NEED HELP ASAP WILL GIVE BRAINLIST
dalvyx [7]
Answer:
Coal

Explanation:
Coal is considered a nonrenewable resource, because it takes millions of years to form.
6 0
3 years ago
Read 2 more answers
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