Which species of gymnosperms has reddish cones and strap like leaves that tear up from the harsh desert conditions? A. gnetum
B. welwitschia
C. ephedra

a hope it helps

Explanation:

explanation:

okay now i don't know this but for the pints nothing else to say bye

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.