The planaria in the diagram are undergoing regeneration. this is a type of reproduction.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino