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Whitepunk [10]
4 years ago
8

Which statement about plasma membranes is correct?

Biology
1 answer:
igor_vitrenko [27]4 years ago
5 0

Answer: A plant cells have cell walls instead of plasma membranes

Explanation:

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Is it necessary to have a gradient in order for diffusion and osmosis to occur why?
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The particles will move from an area of high concentration to an area of low concentration. This direction of movement is described as movement *with* the concentration gradient.

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3 years ago
The statements below compare the similarities of ultraviolet light and microwaves.
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B. is the correct answer
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Civil engineers want to determine whether the porosity of surface soil affects aquifer recharge rates
fomenos

Aquifer recharge is water that moves from the land surface or unsaturated zone into the saturated zone. Quantitative estimation of recharge rate contributes to the understanding of large-scale hydrologic processes. It is important for evaluating the sustainability of groundwater supplies, though it does not equate with a sustainable rate of extraction. Where contamination of an aquifer is a concern, estimating the recharge rate is a first step toward predicting solute transport to the aquifer. Recharge may cause a short- or long-term rise of the water table. Artificial drainage, e.g., with horizontal porous pipes buried at a chosen depth, is sometimes used to maintain a minimal thickness of vadose zone for agricultural or other purposes.
Recharge rates vary considerably in time and space. Recharge often occurs episodically in response to storms and other short-term, high-intensity inputs. For a given amount of infiltration, temporal concentration enhances recharge because it entails shorter residence times for water in the portions of the soil from which evapotranspiration takes place. Similarly, a larger fraction will become recharge if it is concentrated in narrow channels such as fingers or macropores, not only because this tends to hasten its passage through the unsaturated zone, but also because the water then occupies less of the volume of soil from which evapotranspiration takes place.
6 0
3 years ago
What is the name of the distal part of the radius?
topjm [15]

Answer:

Explanation:

Distal Region of the Radius

In the medial surface, there is a concavity, called the ulnar notch, which articulates with the head of ulna, forming the distal radioulnar joint. The distal surface of the radius has two facets, for articulation with the scaphoid and lunate carpal bones.

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