4.Elucidate the challenges and limitations of biotechnology.​

The advantages of biotechnology include curing infectious diseases, creating more efficient fuels and increasing farming yields to feed more people. Disadvantages of biotechnology include antibiotic resistant bacteria, new allergic reactions and higher prices for farmers.

your answer is true

i am 100% sure

explanation:

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.