Answer:
The environment that it lives in has not changed much, therefor there is no need for evolution to take place.
Explanation:
There should be 3 genes involved in the seven phenotypic categories
Answer:
Explanation:
Green crabs have chemoreceptors located on an <em>antenna</em>.
These are long segmented appendages near the crab´s eyes that have both chemoreceptors and allow them to feel the surroundings.
Crabs also have antennules, like short appendages close to the antennas that allow them to <em>sense</em> their environment. A crab can "taste" using hairs on their mouthparts, pincers and even its feet.
So they can detect the salinity of the water by "taste" using the antennules. If these antennules are bathed with nonsalty water, the information the crab´s brain receives is to increase the salinity of its body by the system explained above, increasing its rate of urine production.
I hope it helps!
Answer:
A. Redshift and Blueshift
Explanation:
It’s red shift and blue shift, because this only occurs when the frequency of the wave is made longer or shorter due to the movement of the source relative to the observer.
Answer:
atoms
Explanation:
Atoms are the building blocks of elements.
