Answer:
A. They have the same function
B. They have evolved independently
C. They indicate an evolutionary relationship
Explanation:
- Analogous structures are structures with a different embryonic but have evolved to perform similar function.
- <em><u>Analogous structures are a result of convergent evolution which is the independent evolution of similar features in species of different lineages or different embryonic origin.</u></em>
- Examples of analogous structures include; wings in flying animals like bats, birds, and insects, and fins in animals like penguins and fish.
Answer:
B. retain its urine in it’s blood stream
Explanation:
Sharks are cartilaginous fishes that lives in the ocean. Oceans are always salty, hence organisms need to maintain a salt-water balance between their internal and external environment because of osmosis. Sharks are able to maintain this by ensuring that the amount of solutes in their internal environment is as much as that in their external environment.
Sharks retain a chemical contained in urine called UREA in their bloodstream to counter the osmotic effect of the salt concentration in the waters they live. This helps them maintain a concentration balance with their environment.
<u>Answer</u>:
From only two seismic stations data we can get the direction from which the Earthquake originated.
<u>Explanation</u>:
When the information taken into consideration from only one station, it tells us about the epicenter of the earthquake could at any point on that circle. when the information comes from two stations, the circles intersect at 2 points, so there are possibility of having two epicenters. With three stations, the circles intercept at only one point, which must be the epicenter. The sesmic station present in the network helps in measuring the movement of plates from the ground motion. the signature sesmograph tells us about the bigger earthquakes.
Answer:
Adding tin to copper during melting changes the properties of the metal. The larger tin atoms restrict the movement of the copper atoms, making the material harder.
Explanation:
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