Answer:
D.
Explanation:
D. constructing passageways next to dams to allow salmon to swim around blocked rivers
This program is already being used in many dammed rivers in the northwest and is showing success.
Answer:
all of them? all of the water of earth is constantly recycled. The water in the river came from rain, or the source pouring into it such as a spring. A lot of river/lake water comes from melted snow runoff from mountains.
Explanation:
At high latitudes, ocean water receives less sunlight. Thus, the surface waters in the Arctic and Antarctica are not warmed much; in fact they are very cold
so false
Answer:
Population of F2 generation will be formed on 9:3:3:1 ratio.
Explanation:
The predicted phenotypic ratios of F2 generation is 9:3:3:1. Ratio 9 represents straight wings, gray body which are dominant allele, ratio 3 represents hybrid flies having curved wings, gray body, ratio 3 represents hybrid flies having curved wings, ebony body and ratio 1 indicates flies with curved wings, ebony body. The population of F2 generation will be formed on the above ratio.
Its only to upward an downward I believe