Answer: B.
Explanation: Cytokinesis is the last stage of mitosis. In cytokinesis, the cytoplasm and the membranes divide to create two separate cells.
You can remember this because both cytokinesis and cytoplasm start with "cyto".
The Green Revolution has caused a problem associated with the lower quality of crops are being grown (Option D). This Revolution helped to alleviate hunger in developing countries.
The Green Revolution refers to the extraordinary increase in crop yields during the 1960s.
During this period, the production of cereal crops tripled, with only a 30% increase in the area cultivated.
This revolution was associated with the use of fertilizers and the creation of new high yield varieties (especially in wheat and rice) by using conventional breeding techniques.
However, these high-yield crops have low-quality proteins, thereby a new challenge in the last decades has been the development of high-yield-quality crops.
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<span>a)
</span>The milkweed is the primary producer in the
ecosystem. It manufactures food from the abiotic factors in the soil such as
nitrates and water and those in the atmosphere such as carbon-dioxide and
sunlight. The milk weed is then fed on by the caterpillar and a primary
consumer. The caterpillar is then fed on the mocking bird (secondary consumer)
<span>b)
</span>Increased human population growth and their activities
have resulted in the emission of carbon dioxide and other greenhouse gases in
the atmosphere. This has increased the global temperature. This increase of
global temperature increase ocean temperatures causing coral bleaching.
Another example is depletion of water sources
by human activities hence causing drought. Drought reduces the amount of
vegetation growth due to scarcity of water in the soil (due to lowering of the
water table) for plant growth.