Why do we feel type O and B stars are poor candidates for extraterrestrial life?
A) They do not have a habitable Zone.
B) They don't produce enough yellow light.
C) Their lifetime is too short.
D) They don't produce a planetary system.
E) Their habitable zone lies too close to the star.
Question 2
Which of the following is not a piece of evidence supporting the idea that Pluto is a large comet of the Kuiper belt?
A) Pluto's composition appears to match that of other known Kuiper belt comets.
B) Triton, which must once have orbited the Sun before being captured by Neptune, is significantly larger than Pluto.
C) Pluto grows a coma and a long tail when it is at the point in its orbit closest to the Sun.
D) Pluto's orbit is very similar to the orbits of other known Kuiper belt comets.
E) Pluto is not the largest object orbiting in the region of the Kuiper belt.
The life cycle of a typical fern.
Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes.
Crying Frequency in the Early Months In their first months of life, infants often cry for no appare
For each substrate below, choose which reaction type is favored. Place the letter of the ...
Type II curve. Mortality does not vary with age. Data for five-lined skink (Eumeces fasciatus).
The tree of life, highlighting the phylogenetic relationships