Answer:
Humans are multicellular, complex organisms. The cells inside our bodies are “specialized.” This means that each type of cell performs a unique and special function. For this reason, each of the 200 different types of cells in the body has a different structure, size, shape, and function, and contains different organelles.
For example:
Cells in the brain may be longer in shape so they can transmit signals more efficiently.
Cells of the heart have more mitochondria because they need a lot of energy.
Cells in the respiratory system are responsible for taking up oxygen and releasing carbon dioxide.
All the cells work together to keep the human body running efficiently.
Answer:
Television broadcasting
The transmission of visual images of moving an stationary objects, generally with accompanying sound, in the form of electromagnetic waves that when received can be reconverted into visual images.
Very high frequency (VHF)
A band of radio frequencies falling between 30 and 300 MHz; VHF signals are widely employed for television and radio transmissions. In the United States and Canada, television stations that broadcast on channels 2 through 13 use VHF frequencies, as do FM radio stations. Many amateur radio operators also transmit on frequencies within the VHF band.
Answer:
Latitude determines the surface temperature.
Lower latitude is warmer while higher latitude is cooler.
Explanation:
Mitochondria transfer chemical energy from food to ATP; chloroplasts transform light energy into the chemical energy of ATP.
<span>Mitochondria and chloroplasts are capable for converting chemical energy<span> from food (or light) in the cell to energy in a form usable to that cell (ATP).</span></span>
<span>High-energy electrons which are produced during the oxidation of food molecules (or from the action of sunlight in case of chloroplast) are transferred through the electron transport chain located in the inner membrane of mitochondria. These electron transfers release energy that is used to pump H+ and thus generate an electrochemical proton gradient. H+ moves down its electrochemical gradient through a protein called ATP synthase permitting the proton gradient to drive the production of ATP.</span>
