<span>The correct answer is gold. That's why it has reserves of almost 10 000 tonnes of gold which accounts to almost a fifth of the entire world gold reserves. It is way ahead of the second placed South Africa that produces only 6 000, and Russia that does 5000. It has been going down in recent years, but it's nothing significant and will likely stay first for years to come.</span>
I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open.
Answer:
In eukaryotes, the genome comprises several double-stranded, linear DNA molecules bound with proteins to form complexes called chromosomes
An example of force that acts at distance is gravity and an example of contact force is pushing a chair across the room
speed = distance/ time
Sally's speed = 200m / 39 s = 5.13 ms^-1
