Are a group of organic compounds including fats, phospholipids, and steroids.
proteins
carbohydrates
lipids
nucleic acids

Answer : The correct answer for the blank is -

Lipids.

Lipids can be described as one of the four major macromolecules that are essential for the survival of life forms. They are water soluble organic compound and are major constituent of cell membrane in biological systems.

There are three major categories of lipids, which include steroids, phospholipids, and triglycerides (obtained from food sources such as fats and oil).

Thus, Lipids is the right answer.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).