Answer:
Can someone help me please Explanation:
Is this test the I going to have trace the path a red blood cell would follow starting in the right ventricle and back to the right ventricle included will be every structure ( heart chamber, valve, vessels ) that the red blood cell would pass trough???
context clues,
the meaning is a strong image
The imbalance in energy would cause warming up of the planet and variety in fauna would be limited.
Explanation:
in an energy pyramid large amount of the energy gets dissipated only 10% of the energy is transferred to other level. Trophic level tells the placement of organism in a energy pyramid.
If at any time the pyramid gets blocked:
The passing of biomass and energy gets break to each level.
The organism at the higher level will be scarce of resources as nutrition and energy for growth, multiplication and metabolism.
The organisms at the higher level will get die eventually and vanish from the earth as no reproduction.
The energy dissipated will be in large amount disturbing the ecological chain.
The imbalance in energy would cause warming up of the planet and variety in fauna would be limited.
Answer:
Mannitol is a drug that temporarily disrupts tight junctions. This drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the <u>blood-brain barrier </u>more permeable to larger molecules.
Explanation:
The blood-brain barrier's components are endothelial cells, basement membrane, pericytes, and astrocyte endfeet. The gaps between endothelial cells are small. As a consequence, they form tight junctions that allow the passage of specific and small molecules. In this way, the barrier stops any pathogen from entering the brain. That is to say, that the blood-brain barrier is extremely selective; therefore, medications will not pass through it, so to allow the medicine to enter the brain extracellular fluid, the tight junctions of the endothelial tissue must be disrupted with mannitol.
