When a muscle cell contracts some myosin heads bind to actin molecules as other myosin heads release from actin molecules.
Muscle contraction occurs when the thick filament and the thin filaments slide over one another in a series of repetitive events.
A) The DNA replicates, producing two copies of each chromosome.
Answer:
Your answers are probably estrogen and oxytocin.
Answer: The answer is E: 'Sweetgum, a tree species with wind dispersed seeds'.
The other options mention species that occupy niche environments and would therefore definitely not be randomly dispersed. Rushes and frogs would be found along the edges of water bodies, squirrels would be found within appropriate environments, which would be acorn tree forests and orchid plants also occupy a particular tree
Explanation:
A plant is is a Eukaryotic (if that’s what you meant) and here are some note I took last year, hope they help :)
