During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote.
look up in ur book meiosis which will explain more
Well it's thought that the oxygenation of the atmosphere contributed to the evolution
Hydrogen bond. Although other ones are equally as important such as a dipole-induced dipole
Answer:
Traditional treatment options for cholinergic urticaria are antihistamines, leukotriene inhibitors, and immunosuppressives. However, cholinergic urticaria in some patients may be refractory. Sometimes, an attack of cholinergic urticaria can be aborted by rapid cooling.
The correct option is 3.
Enzymes are biological catalysts which speed up the rate of biochemical reactions inside the cells. Enzymes are very specific in action and they require specific conditions called optimum conditions for them to function optimally.
When the optimum conditions are not met, an enzyme's activity will be lowered or totally stopped.
Conditions that affect the optimum activity of an enzyme include: temperature, pH level and regulatory activity of regulatory enzymes and hormones.
