1. Metamerism is a phenomenon that appears in some animals and it refers to linear disposition of their body segments that are similar in structures. These body segments are called metamers or somites and they include only the ectoderm and mesoderm (not endoderm). Metamers repeat serial and they have role in advanced locomotion. Metamerism might be homonymous when its strict or heteronymous when units are grouped together to perform similar functions.
2. Earthworm is an example of homonymous metamerism, meaning that its segments are strict. The subtype of homonymous metamerism in which Earthworm belongs is called true metamerism because in each its segment there is a repetition of organs and muscles. On the other hand, Arthropods are example of heteronymous metamerism when units are grouped together to perform similar functions. So, they have for example, head (5 metameres), thorax (3 metameres), and abdomen (11 metameres).
3. Similarities between Earthworm and Arthropods’ metamerism are:
• Metamers are similar in structure
• Each metamer has its function
• Involved in locomotion
Differences is that metamers in Earthworm all work together for the whole organism while in Arthropods they are functionally separated in groups with different functions.
Answer:
The answer is mutualism or mutual relationship.
Explanation:
Mutualism is par
maybe a factory since there are amun components and everyone works together to make sure everything goes right
160lbs also WHO IN THEIR RIGHT MIND WOULD ASK SUCH A QUESTION!?!?!?
Isotonic Solution
This solution is basically when the medium surrounding a cell has same water concentration as the cell, there is no net movement of water across the cell membrane. As a result the water moves equally in both sides and the cell remains the same size.
Hope this helped!