The answer is A index fossils
Follicle-stimulating hormone (FSH) controls the menstrual cycle and the production of eggs by the ovaries. The amount of FSH varies throughout a woman's menstrual cycle and is highest before she releases an egg (ovulates).
Bacteria have different phage resistance mechanisms, such as spontaneous mutations, the CRISPR-Cas system.
Spontaneous mutations are the main mechanisms leading to phage resistance by altering the structure of bacterial wall components that act as phage receptors. These include lipopolysaccharides (LPS), outer membrane proteins, cell wall teichoic acids, capsules, and other bacterial components.
A Pseudopodia is a temporary protrusion of the surface of an amoeboid cell for movement and feeding.
