Which of the following is the female reproductive organ in a flower?
a) petal.
b) stamen.
c) pistil.
d) anther.
e) receptacle.

C) Pistil

Explanation:

Pistil is the female reproductive organ in the flower as, pistil is the collective termed for carpel and it is included in the ovary for the reproduction in the female cells and eggs. Basically, pistil is composed of the ovary, style and a stigma. Style is the top of the ovary in the tube form and stigma is process which received the pollen during the fertilization.

The correct answer will be option c- Pistil.  

Explanation:

The flower is a modified shoot of a plant which helps in reproduction. The flower comprises of the male and female reproductive organs which bears the reproductive cells.

The female reproductive organ of a flower is known as pistil, a collective term for female organ also known as gynoecium. The pistil consists of a stalk known as style, a receptive surface for stigma and a swollen base which consists of seeds called ovary.

It is the ovary which contains the female sex cells or egg cell inside a special structure called ovule. The egg cell receives the male gametes after pollination and forms an embryo.

Thus, option c- Pistil is the correct answer.

what's the rest of the question

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a