Answer:
D. Animal cells would not have the materials needed to produce energy in cellular respiration.
Explanation:
Answer:
Process called magnetic separation
Explanation:
The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.
This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.
Answer:
Within each organ, movement moves food and liquid into each organ and combines the contents. A sphincter lets it move through your stomach as food hits the end of your oesophagus. Using motions such as chewing, squeezing, and mixing, the digestive organs divide the food into smaller pieces. The rectum, the lower end of the large intestine, stores stool until the stool is forced out of the anus. To see how food travels through the GI tract, watch a video. External connection from NIH. When you chew, the digestive process begins in your mouth. Salivary glands create a digestive juice that moistens food so that it passes into your oesophagus more easily. There is also an enzyme in Saliva that starts breaking down starches in your food. Peristalsis will force the food down your oesophagus into your stomach after you swallow. What happens to the digested food The hormones and nerves work together to help regulate the digestive process. The liver produces bile that helps digest fats and certain vitamins. Your body is informed by hormones when
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Explanation:
Answer:
b. by increasing the heart rate
c. by increasing the respiratory rate
Explanation:
Increased activity of skeletal muscles would require an increased supply of oxygen to these cells to sustain the muscle contraction. Muscle cells perform aerobic cellular respiration in the presence of oxygen and produce ATP molecules to be used during muscle contraction. Therefore, there is an increase in heart rate to pump sufficient blood to the skeletal muscles which in turn ensures enough supply of oxygen. Also, there will be an increase in the respiration rate to inhale the required oxygen.
