They do this real fancy thing called breathing. There's a couple other organisms that do this too, but none compare to the frog
you need the organisms in order to get help on this
Answer:
Concentration gradient means difference in solute concentration among two regions of a solution.
Explanation:
When there is a difference in solute concentration in the two regions of a solution then the term concentration gradient is used .
Various membrane transport process such as passive transport(diffusion and osmosis),facilitate transport depends on concentration gradient of solute molecule in both sides of plasma membrane.
During passive and facilitate diffusion solute molecules are transported along their concentration gradient that means from high concentration region to the region of low concentration until equilibrium is being established.
The correct answer is option D.
If a girl is standing in front of a smooth surface from which a sound is reflected, the girl may hear two similar sets of sounds if she is also near the source of the sound.
For proper reflection of all sorts of energy waves, a hard flat surface is preferable. This helps to reflect waves without losing energy. Hard and smooth surfaces are best for travelling of sound waves because sound is related to pressure.
The condition called parasitism is characterized as a non-symbiotic relationship. Thus, the correct option is C.
<h3>What is Parasitism?</h3>
Parasitism may be defined as a type of +,- interaction in which the population of species 1 is benefitted while the population of species 2 is harmed.
In this type of interaction, one organism feeds on other but does not kill it. And even some parasites like tapeworms are attached to their hosts for most of their lives.
Thus, the correct option for this question is C.
To learn more about Parasitism, refer to the link:
brainly.com/question/16712707
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