Answer:
The answer is b.
Explanation:
The villi helps increase the absorption surface of the small intestine. It makes sure every nutrient is absorbed b4 going 2 the lg. intestine..
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In the energy pyramid for any given ecosystem, the most energy available is at the bottom and the least energy available is at the top.
At the bottom of the energy pyramid are the producers (plants and other photosynthetic organisms). The first group of organisms that consume the producers are called the primary consumers (herbivores). The next group of consumers are the secondary consumers, and then the tertiary consumers and quaternary consumers.
Correct Answer: B
Answer:
Functions of the bones in the human body:
Support, protection, movement, mineral homeostasis
Explanation:
- Support: the bones provide a rigid support frame for muscles and soft tissues.
- Protection: the bones form several cavities that protect the internal organs from possible trauma. For example, the skull protects the brain against blows, and the rib cage, formed by ribs and sternum protects the lungs and heart.
- Movement: thanks to the muscles that are inserted into the bones through the tendons and their synchronized contraction, movement occurs.
- Mineral homeostasis: the bone tissue stores a series of minerals, especially calcium and phosphorus, necessary for muscle contraction and many other functions. When necessary, the bone releases these minerals in the blood that distributes them to other parts of the body.
During early civilization, the main source of fresh water was from a river. Nowadays, we have reservoirs and lakes to get fresh water. <span />
The correct answer is: damage to the left posterior brain or left optic radiation.
This condition characterized by the loss of half of the visual field on the same side (right side in this case) in both eyes is called homonymous hemianopsia. This happens because information from the optic nerves crosses to the other half of the brain via the optic chiasm (X shape).Since, the visual images from the right side travel from both eyes to the left side of the brain, it is most likely that the injury, tumor or trauma occurred on the left side of the brain. Stroke can also be the cause for the hemianopsia.
