<span>The range of human hearing is generally considered to be 20 Hz to 20 kHz, but it is far more sensitive to sounds between 1 kHz and 4 kHz. For example, listeners can detect sounds as low as 0 dB SPL at 3 kHz, but require 40 dB SPL at 100 hertz (an amplitude increase of 100).</span>
Answer:
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
<span>There are four possible phenotypes with a dihybrid testcross. The 1:1:1:1 ratio means that there is an equal chance of any of the four expected phenotypes in the offspring.</span>
Answer:
The answer is the purpose of the purchase.
Explanation:
A marketing company is a business record and leading standard proposal published by a customer to a merchant, showing varieties, sizes, and allowed charges for commodities or stints. It is employed to constrain the acquiring of commodities and militarizes from obvious suppliers. In extension, the consumer should forever acutely and explicitly state their requests to the agent so there is no trouble when the buying order is initiated.
C. <span>When water in a lake freezes, it floats, providing insulation for organisms below.
This </span> best describes an effect of the low density of frozen water in a lake.
