An ultrasound can produce the image of a fetus by using waves that are labeled as "ultrasound waves" or in ultrasonic frequency.
This may seem like an odd concept but you should note that everything we see and hear is made up of waves, like light and sound, that are at different frequencies.
The reason why there are different color lights are because there are different type of frequencies. Some frequencies, such as ultrasonic, we can not see with our human eye.<span />
2:
- cellular organization
- metabolism
- homeostasis
- hereditary
- growth and development
- response to stimuli
- adaptation to evolution
4: Photosynthesis
those are the ones I am pretty sure are correct, I am so sorry I haven't been in biology in so long :(
Answer:
When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.
The Calvin Cycle begins when energy in the form of light is converted into chemical energy.
Well if you wanna live correct
