Explanation:
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Answer:
False, people show aging within their whole entire life time, as years pass, our physical appearances change.
hope this helps! :)
Answer:
The primary regulatory sites include the cardiovascular centers in the brain that control both cardiac and vascular functions. Neurological regulation of blood pressure and flow depends on the cardiovascular centers located in the medulla oblongata.
Explanation:
Answer:
c. synaptic cleft
Explanation:
Ligand-gated cation channels respond by opening due to neurotransmitter binding and located at synaptic clefts.
Answer:
The cell is the small portion of living matter that constitutes the structural and functional unit of all living beings, formed by genetic material and cytoplasm and delimited by the plasma membrane that enables interaction with the environment.
Explanation:
All living beings are made up of basic units called cells; for this reason it is said that the cell is the structural unit of living beings. In the cell, all the functions and chemical reactions necessary for life are carried out; in addition, it participates in the reproduction processes. Different parts of the cell are distinguished, from the outside to its center. The fundamentals are: cell membrane (delimits and regulates), cytoplasm (organelles) and nucleus (DNA). The cell originates from a single cell, the egg or zygote, which occurs after the union of the gametes (ovum and sperm). Although many species of living beings are capable of reproducing without the participation of gametes, all in some generation do so through this mechanism. The cell is the simplest living being and, therefore, performs its three vital functions: nutrition (the function of uptake of matter and energy), relationship (the capture of stimuli and the emission of adequate responses) and reproduction. Cells have the ability to renew themselves either by growth or by reproduction, cell growth is limited to the manufacture of cellular materials, while reproduction allows the generation of new cells from existing ones. In unicellular organisms, new individuals originate; in multicellular cells, the number of cells increases, making possible the growth of the individual or the renewal of what had been damaged.
