Diploid cells = 2n = 46
Haploid cells = n = 23
therefore, there are 23 chromosomes in haploid cells.
The answer is hybridization.
Hybridization represents crossbreeding of two different breeds, species or genera. It results in hybrids with some characteristics from one breed/species/genera and some from the other one. It could also have some new characteristics. For, example, a crossbreed of an orange and a grapefruit will have some characteristics of the orange and some of the grapefruit. This is an example of crossbreeding between two species of the same genera (Citrus) - orange is Citrus sinensis and grapefruit is Citrus paradisi.
Hormones that initiate pain messages and also cause muscle fibers in the uterine wall to contract (during labor) are prostaglandins.
Hope I helped!
Actually the correct answer is D.
Answer:
the hydrological cycle
Explanation:
The hydrological cycle is the cycle of the water between the Earth's surface (geosphere and biosphere) and the atmosphere. The water moves continuously between these spheres, making it one of the numerous agents that are interchanged and connect them. This cycle is one of the most important ones on Earth, as it is the one that enables life, precipitation, erosion, the existence of large bodies of water, rivers, and streams, the process of photosynthesis etc.