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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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Identify and describe three chemical processes that weather rock
BartSMP [9]
These three (3) chemical reactions include Hydrolysis, Carbonation, and Oxidation. 

• Hydrolysis is a chemical reaction caused by the water in which water responds with the rock and changes the size and chemical arrangement of the minerals that reduces opposition to weathering. 

• Carbonation is an involvement of water with carbon dioxide to create carbonic acid. It appears when the rock minerals respond with fragile carbonic acid made when water associates with carbon dioxide in the air that deeds on the rock by breaching and disbanding the mineral substances. 

• Oxidation is recognized as rusting, a procedure whereby the rock minerals misplace one or more ions or atoms in the occurrence of oxygen. Once minerals in the rock rust it will develop less opposition to weathering. The oxygen associates with other constituents via oxidation method given that rise to ion or atom lose. 
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3 years ago
Imagine that you're able to fully dissolve a powdered substance in water. What can be said about this creation?
Pachacha [2.7K]
It is water soluble and therefore the substance is hydrophilic
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3 years ago
A human cell containing 22 autosomes and a Y chromosome is
murzikaleks [220]

The correct answer is A. A sperm

Explanation:

Sperms are a type of reproductive cells that are essential for sexual reproduction. Sperms are male reproductive cells different from eggs that are female cells. Additionally, these can have flagella that allow them to move to reach the egg or be non-motile. In the case of human sperms, these have a flagella and also they contain 23 chromosomes; additionally, in this there is 1 allosome chromosome that defines sex and in males and therefore sperms can be either X or and 22 autosomes that refer to chromosomes not related to sex, this is also particular from sperms as eggs in humans can only have an X allosome. According to this, it is a sperm the cell that contains 22 autosomes and a Y chromosome.

8 0
3 years ago
What type of inheritance is ABO Blood groups?
AnnyKZ [126]

Answer:

The inheritance of ABO blood groups corresponds to an autosomal codominant pattern.

Explanation:

The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

  • Blood type A corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O.
  • Type B blood, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen.
  • AB blood -due to codominance- has one gene for A and another for B, with genotype A/B.
  • Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.

The presence of an antigen A or B, suppresses the expression of blood type O, recessive, which will be possible only in its homozygous form.

Learn more:

Factors responsible for ABO blood type brainly.com/question/2645377

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Which is not a deciduous tree? cedar hickory beech maple
vredina [299]
A Cedar tree is not a deciduous tree.
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