Answer:
Estrous cycles give females repeated opportunities to become pregnant throughout their productive lifetime. The cycle is regulated by the hypothalamic-pituitary-gonadal axis, which produces hormones that dictate reproductive events.
Explanation:
Answer:
secrete a cytokine that triggers apoptosis
Explanation:
Cytotoxic T cells secrete granzymes and perforins when targeting cells. Additionally they secrete cytokines such as IFN-, TNF-α and TNF-β that act to activate macrophages and help kill infected cells.
Answer:
I think it is the grasshopper.
Fluid means being able to move, relating to the membrane as it can freely move allowing molecules in and out. The word mosaic means something of many different components which also relates to the plasma membrane as it consists of phosphates glycoproteins, cholesterol and integral proteins.