From the above foods; oil, bread, steak, chicken, butter and pretzel, only 2 contain lots of carbohydrates. Colour the bread and the pretzel.
C. If an is added to the water in a vase of daffodils, then the flowers' wilting time will not change because aspirin has no effect on the wilting time of daffodils.
This is the correct answer
Adaption, evolution, variation are all causes of natural selection.
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The development of Ozone, Oxygen, Cyanobacteria <span>factored into the development of complex organisms. The correct option is the last option.
</span>The end of the Paleozoic Era was signaled by mass extinction of land and sea animals. The correct option is the second option.
Reptiles evolved from an ancestor of amphibians that developed an egg with a strong outer shell that kept it from drying out. The correct option is the first option.
Answer:
is negative, except when there is a change in membrane permeability to ions
Explanation:
Membrane potential is voltage that result from differences in Ion concentration of cellular membrane.
Many Ions such as potassium(K+), Sodium(Na+)and chlorine(cl-) has many gradient across the membrane this gives the potential energy. If the membrane is permeable it gives rise to intake of potassium, leading to diffusion of positive charged Ion down the gradient outside the cell leading to a concentration of uncompensated net negative charge.
Hence, the membrane potential is mostly negative except there is a change in members permeability to Ion
