How to use the phenotype ratios to determine the percentage of offspring displaying each trait?

The image shows embryos of three vertebrate classes

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Witch theory suggests all living things are made up of cell or cells