There is a valve at the meeting point between each ureter and the bladder prevents the back flow of urine from the urinary bladder to the kidney
D <span> microscopes hope it helps </span>
Ionic compound means a metal bonds with a nonmetal.
<span>KBr Potassium Bromide, metal and nonmetal. (Ionic) </span>
<span>SO2 Sulphur Di-oxide, nonmetals (covalent) </span>
<span>FeCl3, Metal and nonmetal (Ionic) </span>
<span>The gene sequence containing an operator, promoter and repressor is known as an operon. These genes are called as structural genes. the operon is regulated by the presence/absence of the inducer such as glucose/lactose. It may also be a constitutive operon, which works all the time.</span>
Answer:
Because they take over animals home, food, and lives with poaching, deforestation and pollution.
Explanation:
