Answer:
A
Explanation:
Constructing passage ways near the dams to allow to salmon to swim around blocked rivers. The construction of dams in rivers has blocked the path of some salmons returning to spawning grounds. The best way to overcome this is to make the passage ways near the dams to allow salmons to swim in areas which have blocked due to dams. So that salmons can returned to the spawning ground and can spawn which leads to increase in their population.
Answer:
20-60 as it take about 30 to one hour
Answer:
proteins are made in the cell cytoplasm on tiny structures called ribosomes,to make proteins ribosomes use a code in the DNA
DNA is found in the cells nucleus and cannot move ,so the cell needs to get the code from the DNA to the ribosome this is done using a molecule called RNA (mRAN) - which is made by copying the code from DNA , the RNA acts as a messenger between the DNA and the ribosome - it carries the code between the two
Explanation:
Answer:
air
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids.
This reaction occurs in the thylakoids of the chloroplast