The answer is a. dissection
Answer:
Hey its jj remember
Explanation:
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Secretion of human chorionic gonadotropin [HCG] only occur during pregnancy in the placenta. The concentration of this hormone increase rapidly during the first three months of pregnancy; the amount in the blood stream doubles every two to three days as the development of the placenta and embryo progress. The hormone reaches its maximum concentration peak around the sixth week of pregnancy and after this, its concentration decline.
“Biome” and “ecosystem” are words sometimes used interchangeably to describe a specific type of environment, but this is an erroneous conflation. While the exact nature of the world’s biomes is a matter of some debate, they relate to one another in that they both break the globe down into smaller components based on features of the environment.
Biome Types
No official biome count exists. According to the University of Santa Barbara, some scientists only recognize aquatic, desert, forest, grassland and tundra biomes. Other lists include several more, distinguishing between temperate forests, tropical rainforests and tropical dry forests, for example. Others might break down the aquatic biome into freshwater, freshwater wetlands, marine, coral reef and estuary biomes. More distinct biome types include mountain or alpine biomes, island biomes -- often associated with the marine or ocean biome -- and the chaparral, which describes flat areas, rocky hills and mountain slopes.
Ecosystem Components
Ecosystems can be very small, sometimes no larger than a single puddle. An ecosystem is not a place like a biome is, but rather the set of interactions between the living things in that place. The way the plants, animals and other living organisms such as bacteria and funguses interact with the resources of that ecosystem -- water, sunlight and soil, for instance -- determine how the ecosystem functions.
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A rubber ball about to fall off a hill
