(Q).
Q: Why would prokaryotes be chemotrophs instead of phototrophs in a deep-sea hydrothermal vent? Choices: - too cold - too much light - too much heat - lack of light A:
(A).
lack of light

(Q).
Q: What type of bonds are the attractive forces between the positively charged nuclei of the bonded atoms and one or more pairs of electrons that are located between the atoms? Choices: - active - gravitational - reactive - covalent A:
(A).
covalent

(Q).
Q: What is the term for disease-causing agents, such as bacteria and viruses? Choices: - spores - parasites - vaccines - pathogens A:
(A).
pathogens