I found the missing part of this question.
Statisics on Human Population
<span><span>Year A.D. Number of People (in billions)
</span><span>1650 .50
</span><span>1750 .70
</span><span>1850 1.0
</span><span>1925 2.0
</span><span>1956 2.5
</span><span>1966 3.3
</span><span>1970 3.6
</span><span>1974 3.9
</span><span>1976 4.0
</span><span>1980 4.4
</span><span>1991 5.5
</span><span>2000 6.0
</span><span>2004 <span>6.4
</span></span></span>
The answer is it took 200 years more to double the population from 0.50 billion to 1.0 billion people. The year was 1850.
It was in 1925 when the population double again from 1.0 billion to 2.0 billion.
Answer:
they have altered dna
Explanation:
In most cases, GMOs have been altered with DNA from another organism, these organisms are sometimes referred to as "transgenic" organism
The correct answer is: prevent reception of a signal in a receiving neuron
Neurotransmitters are signal molecules or chemical messengers which transmit signals across a chemical synapse. Neurotransmitters send the signal, from one neuron (nerve cell) to another neuron, from neuron to muscle cell (motor plate), or from neuron to gland cell.
Drugs that bind to neurotransmitter’s receptor can have two effects on its action:
• Antagonists-they bind to receptor and thus prevent a neurotransmitter from binding to it
• Agonists-they bind to receptor and mimic the normal neurotransmitter (have the same effect as neurotransmitter).
The type of microscope of advanced technology that can produce 3D mages of a cell’s surface is an electron microscope. This microscope uses electron signals to project the surfaces of the cells. The difference between a <span>prokaryotic cell and a eukaryotic cell is the presence of the nucleus. The nucleus is the center of all processes of the cell</span>
