HELP! Which of these elements has physical and chemical properties most similar to Arsenia
(As)?
-silicon (Si)
-phosphorus (P)
-lead (Pb)
-germanium (Ge)

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

How can you approximate the number of calories required to keep you in energy balance?