A Only one variable changed
They call it Brackish - half salt water and half fresh water, as where a river dump in the seas
Answer:
a
Explanation:
If populations can interbreed, they are considered one species.
Answer:
There are more earthquakes on the West coast of the United States, because the boundaries of the North American, Pacific, and Juan de Fuca tectonic plates are located there. As the edges of the plates slide past or are forced under each other, the movement creates earthquakes
Answer:
Explanation:
porque una persona con dos alelos normales presentará un fenotipo normal, mientras que si las dos copias del gen son el alelo mutado que producen una enfermedad, el fenotipo expresará los síntomas característicos de esa enfermedad.