Answer:
"The combination of sex chromosomes received from parents " .
Explanation:
Sex determination : The process by which sex of a child is determined .
Parental generation :
Mother Father
XX XY (sex chromosomes )
X,X X,Y (gametes )
First filial generation :
X Y
X XX XY
X XX XY
If XX is formed then it is girl and if XY is formed then it is boy .
Conclusion :
- we concluded that there is 50-50 percent chance of boy or a girl .
- Sex of a child is determined by father because father produce different gametes .
An organism utilizes the energy released and the water molecules formed by the combination reaction of hydrogen gas (H₂) and oxygen gas (O₂).
The formation of water from the reaction of hydrogen and oxygen gas is an exothermic reaction. The reaction of two molecules of hydrogen gas (H₂) with one molecule of oxygen gas (O₂) requires a certain amount of activation energy to form one water molecule (H₂O).
Along with the formation of water molecules, a certain amount of energy is also released in the form of heat.
The balanced chemical reaction equation is: -
2H₂ + O₂ → 2H₂O
Therefore, the energy released by the above reaction is further utilized by the organism for its metabolism.
Learn more about the chemical reaction for water formation here: -
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The correct answer choice would be C.) The death rate will increase. As the ecosystem's carrying capacity has been reached, more and more pressure is placed on the supplies the ecosystem can supply, eventually causing a collapse, which causes death rates to skyrocket. Hope this helped!
Answer:
D. Scintillation counter
Explanation:
DNA is usually labelled with radioactive phosphorus, which is a β emitter, so you need a device that can detect β particles.
A scintillation counter detects β particles because they emit a flash of light when they hit a phosphor. The device converts the flashes into electrical signals, amplifies then about a million times, and then counts them.
A, B, and C are wrong. They are all common laboratory equipment, but they can't detect radioactivity of any sort.
Answer:
Industrialization and revolution are the same because they bring a positive sudden change into the society.
Explanation:
A sudden change in the society meant to be a major result of revolution. This also goes along with industrialization, because the more there are creation of industries, the more the will be increase in employment rate and production of foods, which will eventually raise the standard of living of the people in the society.
