When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale<span />
wood- renewable resource that can be burned
oil- spills can destroy aquatic ecosystems
hydroelectric power- uses the kinetic energy of water
nuclear power- creates radioactive waste
coal- burning releases CO2 into the air
Answer:
Neurons have stable, relatively unchanging internal environments.
Explanation:
Neurons or nerve cells is the structural and functional unit of the nervous system. Neurons consists of the dendrites, axon, cell body and different cell organelles.
The neurons have mitochondria that meets the high ATP requirement and and consume more oxygen. The network of rough endoplasmic reticulum and ribosomes produce large number of proteins in neuron. The internal environment is never stable and gets changed as the nerve impulse transmission occur through the neuron. The membrane potential of the neuron gets changed and changes its internal environment.
Thus, the correct answer is option (B).
Answer:
A
Explanation:
A, the guy with 1 star provided the most noneducational response I've ever seen.
Answer:
B. The inability to reabsorb all of the glucose filtered from the blood at the level of the kidneys.
Explanation:
Diabetes mellitus is a syndrome caused by either lack of insulin or decreased sensitivity of insulin receptors. Type I diabetes is due to lack of insulin secretion where as type II diabetes is due to decreased sensitivity of target tissue to the insulin hormone.
Polyuria i.e excess urine secretion and polydypsia i.e increased flluid intake due to increased thirst are the classic symptoms of diabetes. When the glucose level in blood increases, its not completely reabsorbed from the renal tubules in the kidney, the excess glucose thus enters into the filtrate and moves out along with urine. This normally happens if the blood glucose is as high as 180 mg/100 ml or above. The loss of glucose in urine causes osmotic diuresis. Due to the osmotic effect of glucose in the renal tubules, the tubular reabsorption of water decreases thereby increasing the overall volume of urine. Both extracellular and intracellular dehydration are symptoms of diabetes mellitus.
