Answer:
A. Gravity
Explanation:
The strong gravity, or "Pull" of the Earth is what keeps the moon in orbit.
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Answer:
1 and 5,
2 and 6,
3 and 4
Explanation:
Intestinal phase: stomach empties and decreases secretions
The intestinal phase is the phase where stomach empties its contents(chyme) and decreases secretion. In this stage the duodenum responds to arriving chyme and moderates gastric activity through hormones and nervous reflexes.
The Chyme is the semi-fluid mass of partly digested food that is expelled by the stomach, through the pyloric valve, into the duodenum.
Gastric phase: stomach secretes juice and mixes food into chyme
The gastric phase is a period in which swallowed food and semi-digested protein ( peptides and amino acids ) activate gastric activity which secretes juice and mixes food into chyme. About two-thirds of gastric secretion occurs during this phase.
Cephalic phase: prepares stomach for arrival of food
The cephalic phase of digestion is the gastric secretion that occurs prior to when food enters the oral cavity. Cephalic phase result from the ignition of visual, olfactory, and auditory inputs to the brain and also induce anticipatory responses i.e prepare the gastrointestinal tract for the meal.
Era is used to mark the boundaries of geological time scale by using radio carbon dating technique.
Explanation:
Geological time starts with Precambrian time.
Geologically, time is divided between the Precambrian era and present time into era.
The three eras are Paleozoic era, Triassic period and Cenozoic era.
Era is further divided into periods.
Scientists use radio carbon dating to study fossils and rock formation. With this study they were able to divide them in exact geological scale.
Geologic scale is the record of events in earth's history and evolution.
Answer:When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).
Explanation:
PRESS THE CROWN
Yes, your ear canal is connected to your brain.