The spread of maize cultivation from present-day Mexico northward into the present-day American Southwest and beyond supported economic development, settlement, advanced irrigation, and social diversification among societies.
Examples: Pueblo, Navaho (Navajo)
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What particular agricultural crop helped advance a civilization?
Cultivate Add to list Share. Cultivation is the act of caring for and growing plants. Your desire to grow your own fruits and vegetables in your backyard means that you will engage in some heavy cultivation. Commonly used.
Plowing (or excavating) refers to digging the soil down to a spade depth, burying weeds and debris into the soil, and aerating the soil to avoid compaction. It facilitates the penetration of airborne nutrients and water deep into the soil for plant roots to access.
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Answer:
The primary and secondary responses are equal
Explanation:
Primary and secondary are considered to be two responses of immune to the antigen.
Primary response occurs at the first encounter between the antigen and immune. This response can be as long as 14 days depending on the antigen category.
There are two cells in the body that act as a defensive system and antibodies against antibodies.
the secondary response occurs when a person exposed to the same antigen repeatedly
Answer:
yes
Explanation:
based on the theory of Pangea, pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago.
Operant conditioning is reinforcement, classical conditioning relies more on association between stimuli and responses. A second distinction is that much of operant conditioning is based on voluntary behavior, while classical conditioning often involves involuntary reflexive behavior.
