Farming and the surplus of food allowed humans to focus on activities other than food production, which led to the division of labor and the creation of new social classes-True.
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Farming refers to those activities that are associated with the cultivation of crops and growing livestock. When the crops that are cultivated exceed the nation of a particular nation, then it leads to the surplus of food. In that situation, the governments will take necessary steps for storing the cultivated crops for the future usage.
When different works are allotted or assigned to different workers for the completion of certain tasks and also for improving the efficiency refers to the division of labors. When the Framing and the surplus of food exits it makes them to concentrate on the activities other than farming and this will increase the division of labor and the creation of new social class.
Answer:
Organisms’ characteristics can be used to determine the evolutionary relationships among them. The more closely related two organisms, the more characteristics they have in common. These shared characteristics, along with the fossil record, indicate that organisms have evolved over time from a common ancestor.
Answer:
B. active transport
Explanation:
When a substance is to be transported from the area of its lower concentration to the area of its higher concentration, energy is consumed. The process is called active transport as it uses energy to move molecules against the concentration gradient. Membrane transport proteins such as pumps are involved in this type of transport. Therefore, the given bacterium needs to use the process of active transport to absorb the nutrients from the surroundings.
Answer:
The secondary consumers population will increase due to the lack of predators, and because the secondary consumers population increases, the primary consumers population will decrease because there are more predators.
Answer;
-Green plants are responsible for oxygen in the atmosphere.
Explanation;
-Green plants undertake a process of photosynthesis, in which they use energy from the sun, carbon dioxide and water to form simple sugars and also release oxygen to the atmosphere. The simple sugars from the process may be used by the cells for energy or be stored in form of energy for future use.
-Oxygen is a product of photosynthesis which is released to the atmosphere.
