In humans, free ear lobes are dominant over attached ear lobes. Two parents who are heterozygous are expecting a child. Question 3 options:

25%

0%

75%

50%

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

What molecule contains an organisms genetic material, passed down from parents to their offspring