The explains how wavelengths of light - and sound - change when the source is in motion.
Question 1 options:

Electromagnetic Spectrum

Doppler Effect

Universe

Spectograph

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

not only is it colder, it also becomes darker, less salty, and more dense.

1. aerobic

2. lactic acid fermentation

3. glycolysis

4. anaerobic

5. alcohol fermentation