Answer:Spectroscopy helps astronomers to determine the composition, temperature, density, and motion of an object.
Infrared spectroscopy helps to identify the atoms and molecules in the object.
The red shift or blue shift (Doppler Effect) in a spectral line tells how fast the object is receding from Earth or coming toward it.
The Doppler shift enables astronomers to discover extrasolar planets.
As a planet orbits its star, the star is alternately moving away from or toward us.
Astronomers can use the Doppler shifts to calculate the speed of the star and the mass of the planet that is tugging on it.
Explanation:
Answer: Liver
Glucose is the most important fuel source for the body, specifically the brain. It is absorbed through the
mucosal lining into the epithelial cells of the intestine by active transport
via sodium-dependent hexose
transporter. From the epithelial cells, glucose is moved into the surrounding capillaries
by facilitated diffusion into the liver. Once in the liver, glucose is stored as glycogen.
Flight; fight
The sympathetic is used to speed things up, stopping things like digestion in order to supply more blood to the heart and lungs, while the parasympathetic does the opposite; digesting food and working on internal things while the heart rate and breathing rate slow.
Answer:
D Butterfly, coral and amoeba came from pre existing cells
Explanation:
