Presuming that it takes several billion years of complex live to evolve in a stable environment, the stars most likely to currently have inhabited planets with favorable conditions for life are
a. G to K main-sequence stars.
b. B to A main-sequence stars.
c. G to K giants.
d. white dwarf stars
e. neutron stars.
a
You might also like to view...
In a commensal relationship, the commensal benefits but the cohabitant is neither harmed nor benefited.
Answer the following statement true (T) or false (F)
Kinetoplastids are ____
a. non-photosynthetic b. parasitic c. ciliated d. non-photosynthetic and parasitic e. non-photosynthetic, parasitic, and ciliated
Which of the following conditions is required for the continued movement of water from the soil into and through a plant via transpiration?
A) ?atm < ?root < ?leaf < ?soil B) ?atm < ?leaf < ?root < ?soil C) ?soil < ?root < ?leaf < ?atm D) ?soil < ?atm < ?root < ?leaf
You propose an experiment where root hairs of a particular plant species are continuously treated with an antibiotic while nutrient levels in the plant tissue are monitored. Based on your knowledge of root hairs, you hypothesize the plant will experience a deficiency in what nutrient?
A. calcium B. phosphorus C. nitrogen D. carbon E. potassium