Cross-bridges would form in the absence of an action potential from a motor neuron.
Explanation:
The injected calcium ions would bind to troponin. Troponin would make tropomyosin move away from the myosin-binding sites on actin. The presence of free binding sites on the actin would be followed by the contraction cycle. This would include hydrolysis of ATP to energize myosin heads and binding of these heads to actin to form cross-bridges. Therefore, cross-bridge formation would occur without any action potential if calcium ions are injected directly into the muscle.
The terms caudal and inferior are synonymous, meaning "away from the head end or toward the lower part of a structure or the body; below." The umbilicus is caudal (inferior) to the chin.
Answer: Option A is correct. They eat consumers which ate plants, which absorb it from soil.
Explanation:
Carnivores get nitrogen from the food they eat or consuming nitrogen from the small insects trapped in plant. They eat consumers which in turn eat plants and absorb nitrogen from the soil.
The pattern of organization is used by the writers to organize their ideas to effectively communicate the message.
The pattern of organization used can vary depending on the purpose of writing a statement.
The organizational pattern that is used in the sentence "The three parts of an insect's body are the head, the thorax, and the abdomen" is a spatial pattern.
Spatial organizational pattern organizes the information given in a sentence based on the physical relation of objects with each other. This pattern of organization is widely used by the writers to strike up an image of how the various parts are physically located.
Since in the given sentence the head, thorax, and abdomen are located one after the other in a cockroach's body, the pattern of organization used is spatial.
B is correct. Production of PEP, glucose, and fructose 6-phosphate by gluconeogenesis-specific enzymes that bypass irreversible steps of glycolysis push the equilibrium of reversible enzymes that function both in glycolysis and gluconeogenesis in the direction of glucose production.
