A bird that preys on moths is introduced to the habitat with moths and trees like the ones shown below. A white moth and a black moth are shown.

What will most likely happen to the population of moths in this habitat?
The population of moths will eventually become extinct.
The population of light moths will increase due to a selective pressure.
The dark colored moths will experience disruptive selection.
The alleles that determine light and dark color in moths will equalize.

C. The dark colored moths will experience disruptive selection.

Explanation:

When A bird species is introduced in the habitat with white and black moth, the moths in black or dark color will experience disruptive selection as The tree or habitat is favoring white moth and black moth will be easily noticed by predators or birds.

Disruptive selection is a type of natural selection in which genetics of population is changes by favoring traits with extreme over intermediate values.

Due to increase in pressure of predators the dark moth will try to find the  advantages from light shoot trees (as shown in figure) for survival and leads to speciation with two or more different species forming, and the moth with middle traits will be wiped out.

Hence, the correct option is C.

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.