A higher population density, faster transmission rate, and ot CD longer infectious period each cause a disease like influenza to spread to more people. Which of the following statements correctly explain why? 1. At high densities, infected individuals encountrr more individuals who are also infected. 2. At high transmission rates, an infected-susceptible encounter is more likely to result in an infection. 3. With long recovery, an infected individual is contagious longer and can infect more susceptibles.

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.

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.