Stomach with rugae
Rugae are sets of ridges formed by
folding of the wall of an organ. The stomach rugae exist in the mucosal and
submucosal layers of the stomach. They function through the action of
mechanoreceptors which provide contraction and allow the stomach to expand when
a bolus enters it. By this action, there is increase in the surface area of the
stomach for nutrient absorption during digestion.
Answer:living thing that carries out basic life functions
Explanation:
Answer: B
Explanation:
The way something is arranged enables it to play its role, fulfill its job, within an organism (a living thing). Structure-function relationships arise through the process of natural selection.
Bacteria and Archaea,Eukarya
The Bacteria and Archaea are made up entirely of microorganisms; the Eukarya contains plants, animals, and microorganisms such as fungi and protists.
Because you cannot test it or observe it.
A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment.