Scientists can determine the age of a layer of rock byA) examining the fossils within it.
B) identifying the minerals within it.
C) studying how it has been affected by erosion.
D) comparing the size of one layer with other layers.

Answers

Answer 1

Answer:

Answer; Radiometric dating

Explanation:How do scientists determine the ages of the rock layers?

The age of rocks is determined by radiometric dating, which looks at the proportion of two different isotopes in a sample. Radioactive isotopes break down in a predictable amount of time, enabling geologists to determine the age of a sample using equipment like this thermal ionization mass spectrometer.

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What would happen to a cell if its mitochondria stopped working? And why would it happen!?

Answers

The cell would die. This is because mitochondria are essential for making energy that the cell can use, if the mitochondria stopped working this energy would not longer be available to the cell. If the cell does not have energy, it cannot perform vital functions like respiration.

What might happen to a cell if it was missing some chromosomes?

Answers

Answer:

The phenomenon of unequal separation in meiosis is called nondisjunction. If nondisjunction causes a missing chromosome in a haploid gamete, the diploid zygote it forms with another gamete willcontain only one copy of that chromosome from the other parent, a condition known as monosomy.

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Please help! ;( thank you so much

Answers

Answer: 4.20x10 23

Explanation:is correct

A student sets up an experiment according to the date table below.Based on the table,which question was the student most likely investigating ?

Answers

Final answer:

The student was likely investigating the distribution of homework nights during a week, and should use a chi-square test of independence to analyze the data.

Explanation:

The student was most likely investigating the nights during which the highest number of students do the majority of their homework with equal frequencies during a week. This question relates to analyzing the distribution of homework nights throughout the week. To test this hypothesis, the student should use a chi-square test of independence, which compares the observed frequencies with the expected frequencies.

The chi-square test is a statistical method used to determine if there is a significant association between categorical variables. It compares the expected and observed frequencies in a contingency table, assessing whether any deviations are due to random chance or reflect a true relationship.