Answer:
Factors that can affect the rate the rates of chemical reactions in the body are temperature, substrate concentration and presence and absence of enzymes.
Explanation:
Rate of a reaction may be defined as the speed of the reaction or the rate at which reactants are converted into products.
Increase or decrease in the range of temperature can affect the rate of a chemical reactions of the body. With increase in the temperature the rate of a reaction increases as the effective collision between the substrate increases and then decreases.
Enzymes are the biocatalyst that can increase the rate of a chemical reaction. The absence of the enzymes decreases the rate of a reaction.
The increase in the concentration of substrate increases the rate of a chemical reaction of the body.
Explanation:
Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant chromosomes. ... Crossing over is described, in theory, by Thomas Hunt Morgan.
Answer:
B, Kristen can find out the sex of her fetus using ultrasound as early as 14 weeks but most doctors schedule an ultrasound at around 18 to 21 weeks
Answer:
The correct answer would be "Iron has a higher heat capacity than lead".
Heat capacity can be defined as the amount of heat transferred required in order to raise the temperature of an object by 1°.
The higher the heat capacity the more the heat transfer is required to raise the temperature.
Iron has higher heat capacity as compared to the lead due to which it requires more heat transfer to raise the temperature of the iron as compared to the lead.
It is why the temperature of the lead increases more as compared to iron even though they absorbed the same amount of thermal energy.