To establish causation sociology, there are three key factors namely correlation, time order and ruling out alternative explanations. correlation gives the difference between the alternatives to be considered, time order gives the occurrence of events chronologically, finally, the ruling out alternative explanation gives one the chance to get the best alternative
Explanation:
In eukaryotes, cells which contain mitochondria arose from the process of endocytosis in an aerobic bacterium in a primitive cell. Further evolution of this new cell type led to the development of the chloroplast.
Further explanation:
Endocytosis is a type of active transport that moves particles, such as large molecules, parts of cells, and even whole cells, into a cell. There are different variations of endocytosis, but all share a common characteristic: the plasma membrane of the cell invaginates, forming a pocket around the target particle. The pocket pinches off, resulting in the particle being contained in a newly created intracellular vesicle formed from the plasma membrane.
Cells perform three main types of endocytosis. Phagocytosis is the process by which cells ingest large particles, including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. Mitochondria are small cellular organelles bound by double membranes make most of the chemical energy required for powering the biochemical reactions within the cell. this chemical energy is stored within the molecule ATP which is produced
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Answer:
Option (C).
Explanation:
The dilation of feeder arterioles carry blood directly into the blood vessels. The pre capillary sphincter in the systemic capillary beds can open due to the different factors.
The local release of histamines do not cause the dilation of feeder arterioles and does not cause the opening of systemic capillary beds. Histamine chemical is involved in the immune response of the body.
Thus, the correct answer is option (C).
Answer:
They established of a postal system
The spread of weapons that used gunpowder
The extension of the grand canal in China
The invention of new medicines
Explanation:
The Pax Mongolica refers to the stabilizing impacts of the conquests of the Mongol Empire on the social, cultural and economic life of the citizens of the vast Eurasian territory that the Mongols conquered in the 13th and 14th centuries.
Answer:
The correct Answer is A.
Explanation:
The Flow chart of the Carbon Cycle, will look as follows:
1. Carbon dioxide in the atmosphere.
2. Producers undergo photosynthesis (in this process plants among other producers like algae, use CO2 to produce energy).
3. Consumers eat producers (a primary level of consumer like a rabbit eats the producers or plants).
4. Decomposers return Carbon to the soil and release waste.
And the cycle continues again, by going back to step 1.
