Answer:
\rMyosin binding to F-actin is blocked
Explanation:
Tropomyosin is a protein involved in skeletal muscle contraction and that wraps around actin and prevents myosin from grabbing it. This prevents muscle contractions until the proper signal arrives. When the nervous system tells the muscle cell to contract, calcium is released.
Aquatic plants and animals, need oxygen and sunlight just like land plants. The deeper you go down in to the ocean the less sunlight. That is why estuaries and coral reefs are more productive than deeper regions of the ocean.
Answer:
The correct answer is option b. "The phosphodiester linkages of the polynucleotide backbone would be broken".
Explanation:
The phosphodiester linkages of the polynucleotide backbone is what binds each nucleotide to each other in the DNA molecules. These linkages are covalent bonds that take place between 3' carbon atom of one sugar molecule and the 5' carbon atom of another. The enzymes that break down DNA catalyze the hydrolysis of the phosphodiester linkage, which results in DNA cleavage within the backbone at specific or unspecific nucleotides.
Answer:
1. Molecular evidence: similar proteins and genes found in closely related species, even if those genes are not used by an organism.
2. Fossil evidence: organisms changing form over time through the fossil record.
Direct observation. We can directly observe small-scale evolution in organisms
with short lifecycles (e.g., pesticide-resistant insects).
Explanation:
Answer:The body uses carbohydrates (glycogen) for medium-term energy storage and lipids (fats or triglycerides) for long-term energy storage. Carbohydrates store about 16 kJ/g, while fats store about 39 kJ/g. Gram for gram, triglycerides store more than twice as much energy as glycogen.
Explanation: