Answer:
B
Explanation:
random motion from one part of a membrane to another, from a lower concentration to a higher concentration.
they are essential to its health. As dead wood is decomposed it aids new plant growth by returning important nutrients to the ecosystem.
Answer:
<em>False</em>
Explanation:
The wax acts as a sealant to reduce the stress on the roses during transit and up until the time they can be planted and established into ground soil.
Explanation:
The flow of the river is dependent upon the position along the stream in terms of the gradient. Near the top of a high gradient, the flow will be less than that near the bottom. Likewise, the steeper the river's gradient, the faster the flow of water (due to the pull of water down the gradient by gravity).
Answer:
stimulus, control center
Explanation:
The control center is the main nervous system of the brain that is used to carry out different sensory, the motor and integration of data.
The stimulus control is the behavioral control that is described as the situations where behavior is triggered by the presence or the absence of any stimulus. Stimulus is the functional reaction in a tissue or any organ.
In the context, the nerve cells in the stomach responds to the stimulus that results from the foods after eating food is a mechanism between the stimulus and the control center.
