D. A deceased family member
D. Myosin and actin do not fully detach, so the muscle cannot relax.
Answer:
B. The products of photosynthesis are the reactants of cellular respiration.
Explanation:
The cell must be lysed (broken open) to release the nucleus. the nucleus (if present) must also be open to release the DNA. at that point the DNA must be protected from enzymes that will degrade it, causing shearing. [[ once the DNA is released, it must then be precipitated in alcohol...]
