Why is water considered to be abiotic? *because it is not part of the bioshpere *because it came from something non living *because it is dead *because it never lived

What element is able to combine with itself and hydrogen to form large molecules ?

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey