Which of the following sequences correctly describes the stages of life for a low-mass star?
A) protostar, red giant, main-sequence, white dwarf
B) protostar, main-sequence, white dwarf, red giant
C) white dwarf, main-sequence, red giant, protostar
D) protostar, main-sequence, red giant, white dwarf
E) red giant, protostar, main-sequence, white dwarf
Question 2
What happened to all of the quarks that existed freely during the particle era?
A) They froze out of the soup of particles at the end of the era.
B) They combined in groups to make protons, neutrons, and their antiparticles.
C) They evaporated.
D) They combined in groups to make electrons and neutrinos.
The seed-to-seed life of flowering plants.
The amino acid sequences of whale myoglobin and the α and β chains of human hemoglobin
Three stages of phases: inflammation, proliferation and maturation.
The second half of life brings a change from outward to inward concerns and from physical to ...
Summary of Life's Characteristic
Deducing fetal genome sequences from maternal blood