The magnetic field of Earth was most likely created by (2 points) Select one:

a. moving electrical charges

b. stationary electrical charges

c. bar magnets inside Earth

d. north and south poles of Earth

Which would be an adaptation in a rainforest, but not in a tundra? a. ability to store water for a long time b. fur that blends in with snow c. strong claws for killing prey d. a beak that can dig into thick trees

Dna is colied into chromosomes in a cell

Cells destroy body cells infected by a virus or bacteria.