The control group is group A
It occurs without energy input. Passive transporters let something across a membrane "with the gradient" in other words, substances travel from high concentration to low concentration, which is energetically favorable.
<span>to withstand the winds placed upon them by an earthquake ect. this is from what I've learned in simplest form</span>
Answer:
Sound is made up of waves in the form of vibrations in the air. Or you can use the signal to record the sound on magnetic tape. This works by a similar process of moving a magnet, but that magnet causes a magnetic tape to gain magnetization in patterns that represent the sound.
In a digital recording system, sound is stored and manipulated as a stream of discrete numbers, each number representing the air pressure at a particular time. The numbers are generated by a microphone connected to a circuit called an ANALOG TO DIGITAL CONVERTER, or ADC.
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Explanation:
In seedless plants, a fertilized egg will develop into a sporophyte. The sporophyte releases haploid spores. Seedless plants include ferns, club mosses and horsetails. They are seedless because they do not produce seeds and are instead dispersed like bryophytes.