It tends to move away from the area where it is more concentrated. Hope this helps.
Your answer is <span>3.
Iron</span>
To answer this question, subtract from the total population of 1000 the homozygous dominant (DD) frogs of 280 and the homozygous recessive (dd) frogs of 220, and you are left with 500 frogs that by default are <span>heterozygotes (dD). The frequency of these frogs would be 500/1000 = 0.5</span>
The cells will be branched , multi nucleate and will contain bands of light and dark color so the answer is C
