The Homo ergaster occupy Africa 1.6 million years ago. Therefore, option A is correct.
The oldest early humans known to have had proportions similar to modern humans, with relatively long legs and shorter arms compared to the size of the torso, are the early African Homo erectus fossils (also known as Homo ergaster).
At the onset of the lower Pleistocene and the lowering of the environment, Homo ergaster, sometimes known as the "working man," is an extinct species of hominid (or subspecies, according to some authorities) that existed throughout eastern and southern Africa between 1.9 and 1.4 million years ago.
Thus, the Homo ergaster occupy Africa 1.6 million years ago. Therefore, option A is correct.
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The nucleus. If a cell has a nucleus it is eukaryotic if it doesn't, it is prokaryotic.
Here you go: Homeostasis, Reproduction, Metabolism, Growth, Response to enviroment hope this helps!!
Answer:
The correct answer will be option-B (fats or lipids)
Explanation:
The oxidation of fatty acids provides the most abundant energy that is 9 kilocalories per gram of food as compared to proteins and the carbohydrate which provides only 4 kilocalories per gram of food.
If a person wants to go hiking then, the person would keep the food rich in fatty acids which will provide a high amount of energy and a large amount of heat through the process of respiration.
Thus, Option-B is the correct answer.
C. proteins
sorry if this didn't help...:(
and if it did please let me know! :)
If the cell membrane does not allow the water or solute particles to pass through it then the cell will be deficient in those particles which could even lead to the deathof cell.
The animal cell has an outermost covering which is known as the cell membrane or the plasma membrane. It is selectively permeable in nature. It only allows some solute particles to move across it. The cell membrane does not allow all the particles to move across it, as a result the restricted particles requires a protein or ligand through which it can cross the membrane.
Cell membrane is made up of phospholipids and membrane proteins. Their is a lipid-bilayer in which some proteins are embedded are known as integrated proteins and some are present on the membrane. Cell membrane is present in all types of cells, however a cell wall is also present in plants outside the cell membrane.
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it helps regulate what comes into and what leaves the cell