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kobusy [5.1K]
3 years ago
7

3: Hominids are the group of primates that includes humans, gorillas, and chimpanzees. In 1997 a team of scientistsdiscovered th

ree fossilized hominid skulls and other artifacts found at the dig site in Ethiopia. Since it is difficult todetermine the age of once living organisms, the scientists used radioactive dating on the igneous rock thatsurrounded the remains to determine their age.
Why would scientists choose radioactive dating to determine the age of the igneous rock?

A: This method is an easier way to determine the age of rocks.
B: The procedure allows for the rock samples to be preserved.
C: This process provides scientists with the exact age of rocks.
D: The rate of decay in the rock provide an accurate way to calculate age.
Biology
1 answer:
irga5000 [103]3 years ago
8 0

C: This process provides scientists with the exact age of rocks.

Explanation:

Radioactive dating techniques are absolute dating methods that yields precise age of rocks. They are targeted at radioactive isotopes in rocks using their parent to daughter ratio.

  • Dating can either be absolute or relative
  • Absolute dating techniques like radiometric ones gives the precise age of rocks.
  • Relative dating techniques uses geologic events to place the age of earth samples.
  • When the scientist deploys radioactive measurement, he would be furnished with actual age of the rock.

learn more:

Radiometric dating brainly.com/question/7022607

#learnwithBrainly

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Circle the letters that identify a type of rock
maria [59]
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3 years ago
A researcher examining a root tip observes a plant cell with condensed sister chromatids, kinetochores with attached microtubule
Basile [38]

Answer:

The statement 2 best describes the next process taking place within the cell.

Explanation:

A kind of cell division, which is characterized by the differentiation of a single parent cell into two daughter cells that comprise equivalent chromosomes number is termed as mitosis or reductional division. In the given case, the arrangement of chromosomes at the equatorial plate indicates that the cell is currently in the metaphase stage of mitosis.  

After going through the stage of metaphase, the cell moves into the anaphase stage. In the anaphase stage, the sister chromatids begin to segregate and move towards the opposite pole of the cell. Thus, statement 2 correctly illustrates the next stage of the cell.  

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3 years ago
Arrange the sequence of events for the overall mitochondrial respiratory assembly in the correct order.
kotykmax [81]

Answer:

Option D, 4,2,1, 3

Explanation:

The mitochondrial respiratory chain (MRC) comprises of four membrane bound complexes and it involves the following steps

a) RC complexes (RCC) I and II reduces the RC’s equivalent where RCCI i.e receives electron from the NADH.  

b) These electrons are then transferred to the flavin mononucleotide factor and then passed on to the Fe-S embedded cluster .

c) These electron reduces the coenzyme Q  to ubiquinol  

d) With in the inner mitochondrial membrane (IMM), protons are trans located from IMM to the  intermembrane space (IMS)

e) RC complex II then transfer electron from succinate to the cofactor FAD

f) From FAD proton are transferred to the FeS cluster and on the other hand electron move from QH2 to the RC complex III

g) This RC complex III give its electrons to the cytochrome and they are further passes on to the RC complex IV

h) With four redox centers, the terminal RC complex translocate protein by using energy produced in electron transfer thereby converting oxygen into water.

Hence, the correct option is D

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4 years ago
You are a defense attorney arguing in court for protecting a coral reef from harmful activities. give your three most important
hram777 [196]
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Which emergency condition requires the immediate use of cardiopulmonary resuscitation (cpr)? quizlety
Black_prince [1.1K]

Emergency condition like Myocardial Infarction requires the immediate use of cardiopulmonary resuscitation (cpr).

<h3>What is Myocardial Infarction?</h3>

Myocardial infarction, another name for a heart attack, is an extremely serious condition caused by inadequate blood flow to your heart muscle. Although there are several potential causes, the most frequent one is a blockage in one or more of the arteries leading to your heart. Without blood supply, the damaged heart muscle will start to degenerate. If blood flow isn't quickly restored after a heart attack, there could be permanent cardiac damage and even death.

A heart attack is an emergency that puts your life in danger. If you think you or someone you're with is having a heart attack, dial 911 immediately (or your local emergency services phone number).

Learn more about Myocardial Infarction with the help of the given link:

brainly.com/question/28187123

#SPJ4

7 0
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