How many neutrons does an atom of hydrogen have

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

Examine the following diagram. place the labeled layers in order from youngest to oldest.

In horses gray horses gg are codominant to white horses ww. the heterozygous horse gw is an appaloosa horse (a white horse with gray spots). cross a white horse with an appaloosa horse. i just need the answer to the genotypic ratio and phenotypic ratio