In most unsaturated fatty acids found in animal fats, vegetable oils, and biological membranes, the cis isomer predominates. true false

The correct answer is - true.

Explanation:

Most unsaturated fats are oils and normally are biological membranes or plant-based such as vegetables. These fats mostly have cis isomer in them. Unsaturated fats help to lower blood cholesterol levels.

However, few oils show saturated fats but these are few in number, the majority are made up of unsaturated fats that have double bonds.

i think its through the fallopian tube

substitution is the answer in this case