In figure 1, starting from the left, what magnetic poles are shown on the two bar magnets?

north, south, north, south
south, south, north, north
south, north, south, north
north, north, south, south

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation