Developmental disorders are often caused by mutations in several genes. These type of genetic disorders are .
a. dominant
b. recessive
c. not inherited
d. polygenic

Why does the skin of your finger shrink when you wash clothes for a long time?

The transport tubes for food coming down the plants are called?

Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.