Which of the following describes an insulator?

a. does not allow electrons to move through it

b. allows electrons to move through it

c. is always a solid

d. is always a gas

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

Can a trait be both polygenic and have multiple alleles? explain why or why not.