The correct answer would be B.(2nd one)
There are seven major classes of nutrients:
carbohydrates, fats, fiber, minerals, protein, vitamins, and water.
Plant cells perform photosynthesis, and possess chloroplasts and chlorophyll, while animals do not :)
Answer:
It is the cycle when the reproductive organs start to fertilize. Another form of this is called the menstural cycle when natural changes in the uterus and ovaries to make reproduction possible soon.
The correct answer is a semi-permeable membrane.
A semipermeable membrane refers to a layer, which only allows some of the molecules to pass through. A semipermeable membrane can be both artificial and biological. The speed of passage relies on the concentration, pressure, and temperature of the solutes or molecules on either side, as well as the permeability of the membrane to each solute.
On the basis of the solute and the membrane, permeability may depend on the size of the solute, properties, solubility, or chemistry. A semipermeable membrane illustrates a membrane, which permits some of the constituents to go through, while the selectively permeable membrane opts for the substances that pass through.
