D two cells with 12 chromosomes in zero homologus
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Number 3, "has more people than ever before" is correct. As there are more people, there is a greater need more resources.
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Its IV. forests are habitat for two-thirds of terrestrials species....................
Answer:
Hair root is 27 dicot is 33
Answer:
The atmosphere can be divided into layers based on its temperature, as shown in the figure below. These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere. A further region, beginning about 500 km above the Earth's surface, is called the exosphere.
The red line on the figure below shows how temperature varies with height (the temperature scale is given along the bottom of the diagram). The scale on the right shows the pressure. For example, at a height of 50 km, the pressure is only about one thousandth of the pressure at the ground.