The best answer is B (semi permeable)
The cell membrane of a red blood cell is semi permeable membrane. This is a type of biological membrane that will allow certain molecules or ions to pass through while barring others.
Red blood cells have very thin membranes that allow oxygen diffuse through quickly. They are also permeable to water and osmosis across the membrane occurs very rapidly. In the body, they are bathed in isotonic plasma in which case water movement into the cell is equal to water movement out of the cell and so the cells remain intact.
the forelimb help with balance and crawling and the hind limbs are stroger than the forelimbs and they are used for jumping/hopping
Answer: sporophytes photosynthesise, particularly when immature, but depend on gametophytes for at least 50% of nutrient requirements
Explanation: In mosses, the gametophyte generation is the dominant generation unlike in higher plants. The diploid sporophyte generation produces several spores per capsule.
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.
