Answer:
La función básica del aparato respiratorio es la respiración. Consiste en llevar el oxígeno del aire a la sangre y eliminar el anhídrido carbónico (CO2) al aire. Este intercambio de gases se produce en el interior de los pulmones.
Explanation:
Answer:
<em><u>The correct option is A) carbohydrate chain</u></em>
Explanation:
The carbohydrate chain present in the cell membrane helps determine the characteristics of the cell and it also helps to identify the chemical signals from outside the cell. Hence, option A is correct.
Other options, like option B, is not correct because the function of the cholesterol in the cell membrane is to prevent the fatty acids from sticking together. Option D is not correct because transport proteins help some molecules to move inside the cell.
False. this earth has always had life. be it microscopic cells to a gigantic titanosaurus
Explanation:
In the early days of development, in an embryo, the cells are pluripotent and can differentiate into any kind of cell of the organism. As the embryo develops, autocrine and paracrine signaling between the cells of the embryo causes the cells to migrate to particular regions of the embryo and begin differentiating into respective parts of the organism. This signaling causes differential silencing of particular genes of the cells depending on the type of cells they will differentiate into. As the embryo develops into a fully grown organism, these cells lose potency (except for stem cells) and become fully differentiated into respective limbs or organs of the organism.
Learn More:
For more on embryology check out;
brainly.com/question/11484135
brainly.com/question/12777212
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