Semipermeable means only certain substances can pass through. I imagine you are talking about cell membranes which are semipermeable. This means vital things like oxygen and nutrients are able to pass through the membrane, while not allowing everything to enter the cell
Hello! Calcium is good for your body. You can find a good source of calcium in milk. :) Hope this has helped.
No they can't there's no air in space space is like a vacuum it suck up all the air
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The pollinators help spread the pollen of the flowering plants to help them reproduce. If the flowering plants blended into their surroundings, the pollinators would not be able to identify the flowering plants, and the plants would eventually die off or become extinct.
Explanation:
