Q: Hundreds of organelles called myofibrils, made up of two types of protein filaments, are contained in each fiber of what? Choices: - bone - hair - cartilage - muscle A:
muscle

Q: In which solution is the amount of dissolved material equal both inside and outside of the cell? Choices: - supersaturated - exothermic - hypotonic - isotonic A:
isotonic

Q: Q: What evolutionary concept emphasizes reproductive isolation? Choices: - chemical species concept - toxic species concept - reproductive method concept - biological species concept A:
A: biological species concept

Question: Q: Name the two types of nucleic acids. Choices: - isoleucin and leucine - dna ( trigraph acid ) and rna ( ribonucleic acid ) - lysine and methionine - dna (deoxyribonucleic acid) and rna (ribonucleic acid) A:
Answer: dna (deoxyribonucleic acid) and rna (ribonucleic acid)

*Question*
Q: Tree sap enclosing an organism in amber or an organism preserved in tar or ice are actually examples of what? Choices: - bones - corals - fuels - fossils A:
**Answer**
fossils

(Q).
Q: What is capable of altering the rate of time passing? Choices: - strong planetary fields - weak gravitational fields - strong magnetic fields - strong gravitational fields A:
(A).
strong gravitational fields