Dietary fats that are solid at room temperature are made up mostly of polyunsaturated fatty acids. essential fatty acids. monounsaturated fatty acids. saturated fatty acids.

1. the answer is a parasite

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b

Idont understand what youre askimg