The answer is A. anther and ovary.
The female part of an angiosperm flower is called a pistil and it consists of a style, stigma and ovary. The male part of an angiosperm flower is called a stamen and it consists of an anther and corolla. Thus, among all choices, choice A is the answer.
Choice B - anther is the male part of the flower, but sepal is a protective part of the flower and not reproductive.
Choice D - stigma is the female part of the flower, but sepal is a protective part of the flower and not reproductive.
Choice C - "vary" is not a word, but it is a mistake and it should be "ovary," the answers could be both choice A and C.
Purchase products made from recycled material
Recycle used Products
and
Walk instead of drive
Driving releases pollutants in the air and when we use gas and oil we are using lots of our natural resources and cutting them down day by day.
Measuring photosynthesis via the production of oxygen. Oxygen can be measured by counting bubbles evolved from pondweed, or by using the Audus apparatus to measure the amount of gas evolved over a period of time.
Answer:
Prezygotic barriers:
1. Habitat isolation
2. Behavioral isolation
Explanation:
Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.
The two mechanisms of the pre-zygotic barriers are the:
1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.
2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.
Thus, Habitat isolation and Behavioral isolation are correct.
