A) a common ancestor
Homologous structures are structures that are similar in related organisms. There is a basic pattern of bones which can be inherited from a common ancestor
The head should be positioned in the upper of the body.
The weight of the center body should be over the pelvis.
The legs and knees should be stable enough to support that body's weight
Explanation:
For humans to keep a balance while walking, their body must be properly positioned in the right manner.
- The head must be fixed and positioned straight on the upper body. It should not at any point be unbalanced by being projected too forward or backward or to the side.
- The weight of the center body should be over the pelvis. The alignment gives the proper positioning of the center of gravity of the human body.
- The pelvis should carry and spread the weight of the body to the body parts that attaches to it.
- The legs and knees should be straight and stable to support the weight of the body.
- If they are not strong enough the body will wobble and not be balanced.
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Answer:If the enzyme changes shape, the active site may no longer bind to the appropriate substrate and the rate of reaction will decrease. Dramatic changes to the temperature and pH will eventually cause enzymes to denature.
Explanation:
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The full question is:
"Which of the following has the element correctly matched with its description?
The duodenum is the first section of the small intestine and contains Peyer's patches.
The bile moves upward and backward and pushes the bolus
The bones attaches the liver to the anterior abdominal wall
Tongue toxins prevent water absorption in the large intestine"
Answer:
The duodenum is the first section of the small intestine and contains Peyer's patches.
Explanation:
It is true that the duodenum is the first section of the small intestine where Peyer's patches are located. The duodenum is the place where most of the entire digestive process occurs, in addition, it allows food to mix with bile and digestive juices.
Peyer's patches play an important role in immunological surveillance during digestive processes. This is because it allows the destruction of possible pathogens associated with food, or that interfere with digestion in some way.